| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 333100100 | Nonreciprocal gyromagnetic type (e.g., circulators) | 75 |
| 20090051456 | Circulator/isolator housing with inserts - A circulator/isolator housing is provided that includes body and a plurality of slots within the body configured to receive therethrough inserts having magnetic permeability. The housing further includes a plurality of receiving portions within the body corresponding to the plurality of slots and configured to maintain a position of the inserts. | 02-26-2009 |
| 20090072922 | INTEGRATED NON-RECIPROCAL COMPONENT - The invention relates to a non-reciprocal component comprising a first dielectric part ( | 03-19-2009 |
| 20090108953 | MULTI-JUNCTION WAVEGUIDE CIRCULATOR WITH OVERLAPPING QUARTER-WAVE TRANSFORMERS - An improved multi-junction waveguide circulator overlaps two quarter-wave dielectric transformer sections so that the transitional sections occur concurrently in the same length of waveguide. Consequently, the two quarter-wavelength sections require a total length of between one-quarter wavelength and one-half wavelength, with no air gap between the two sections along the length of the internal cavity. The improved waveguide circulator can be implemented in variations from a minimum of two ferrite circulator elements held in close proximity to one another to any number of ferrite elements as required to achieve the desired isolation performance or to create a switch matrix with any combination of input and output ports. The improved waveguide circulator minimizes the length of the transitions between adjacent ferrite elements and thus reduces losses, component size, and mass. | 04-30-2009 |
| 20090108954 | Quasi active MIMIC circulator - A circulator capable of simultaneous transmit and receive operations, high frequency, and high isolation and broadband performance comprising: an antenna port; a transmission port; a receiving port; wherein each port is connected to a 90 degree combiner/divider for splitting an input signal into two output components, the said output components have a ninety degrees relative phase difference to each other; each of said 90 degree combiner/dividers in addition to the connection to the above mentioned ports has at least two output connections each of which are connected to a Y-junction and if a fourth connection, said fourth connection is attached to a matching load circuit; this arrangement of circuits allows the potion of the phase shifted signals from the transmit port to enter the antenna 90 degree combiner/divider and be enhanced at the antenna port, while the rest of the signal enters the receive 90 degree combiner/divider and are phased cancelled; said arrangement allows the signals from the antenna port 90 degree combiner/divider to combine in phase at the receive port. | 04-30-2009 |
| 20090206942 | NON-RECIPROCAL CIRCUIT DEVICE - A non-reciprocal circuit device comprising a magnetic plate F | 08-20-2009 |
| 20090206943 | NONRECIPROCAL CIRCUIT DEVICE - A nonreciprocal circuit device includes a permanent magnet, a ferrite to which the permanent magnet applies a direct-current magnetic field, first and second central electrodes arranged on the ferrite, and a circuit board. The first central electrode includes electrode layers provided on main surfaces of the ferrite connected by an electrode provided on a top surface of the ferrite. A second central electrode includes electrode layers provided on the main surfaces of the ferrite connected by electrodes arranged on top and bottom surfaces of the ferrite. The second electrode is wound at least about three turns around the ferrite. A width dimension of the outermost electrode layers of the second central electrode is greater than a width dimension of the inner electrode layers of the second central electrode. | 08-20-2009 |
| 20090237173 | RADIOFREQUENCY OR HYPERFREQUENCY CIRCULATOR - A circulator with at least three ports (p | 09-24-2009 |
| 20090243746 | Circulator Device And A Method For Assembly - The present invention is directed to a circulator/isolator device that includes a housing having a substantially planar base portion integrally connected to a segmented flexible wall structure extending in a direction normal thereto. The substantially planar base portion and the segmented flexible wall structure forms an interior housing volume having a predetermined geometry. The segmented flexible wall structure includes a plurality of port apertures disposed therein. The plurality of port apertures are separated from each other and disposed at predetermined locations in the segmented flexible wall structure. A central stack is disposed within the interior housing volume at a predetermined position on the base portion. The central stack includes a substantially flat conductor having a plurality of port structures extending therefrom. Each of the plurality of port structures are disposed at predetermined positions at a perimeter portion of the substantially flat conductor. The predetermined positions substantially conform to the predetermined locations such that each of the plurality of port structures extend through the segmented flexible wall structure at a corresponding one of the plurality of port apertures. A cover member is disposed within the housing at one end thereof, opposite the base portion, such that an exterior major surface of the cover is accessible via an exterior of the device and an interior major surface of the cover is disposed adjacent the central stack. A retaining member is disposed around a perimeter of the segmented flexible wall structure at the one end. The retaining member is configured to apply a substantially uniform radial compressive force to the segmented flexible wall structure to retain the cover member there within. The cover member applies a registration force to the central stack assembly to maintain the central stack assembly at the predetermined position. | 10-01-2009 |
| 20090261919 | MILLIMETER WAVE BAND NONRECIPROCAL DEVICE - [Problem] When a nonreciprocal device operating at 100 GHz to 300 GHz is to be realized by using a conventional magnetic material of garnet-type ferrite or spinel-type ferrite, a huge permanent magnet is required and, therefore, it is very difficult to achieve a millimeter-wave band nonreciprocal device for practical use. | 10-22-2009 |
| 20090302964 | CIRCULATOR TYPE MONOLITHIC DEVICE - A monolithic circulator, intended to be connected to an antenna for transmitting and receiving high-frequency signals includes a differential amplifier adapted to provide a signal on an output of the circulator. The amplifier has a first and a second input and an output. First and second 3 dB couplers each have first, second, and third access terminals respectively. The second terminals of the first and second couplers are connected to an input E of the circulator. Each third terminal is connected to the first and second inputs of the amplifier respectively. The first terminals are respectively intended to be connected to the antenna and to a charge element having an impedance close to that of the antenna. | 12-10-2009 |
| 20090309671 | Integrated Microstrip Circulator and Antenna Assembly - Embodiments of integrated device and associated methods of design are provided. Such embodiments include a metallic ground plane, dielectric material, ferrite puck and formed metal layer configured to define circulator and microwave device portions, or functions, within an integrated device unit. Impedance characteristics of each functional portion are determined independent of one another and are optimized with respect to each function. Respective matching network portions of each integrated device optimally couple the circulator portion with a microwave device portion and one or more connector ports. Integrated devices of the present teachings can be applied modularly at the systems level of communications, radar, and/or other contexts. | 12-17-2009 |
| 20090322440 | MICROWAVE CIRCULATORS - A microwave circulator having an outer metal housing with a cavity containing at least one magnet and an annular centring arrangement interposed between the outside of the magnet and the cavity. The centring arrangement includes first and second solid metal rings, the two rings having cooperating inclined faces arranged such that when a force is applied to urge the centring arrangement along the cavity, one ring is displaced outwardly into intimate contact with the inside of the cavity. | 12-31-2009 |
| 20100026409 | Low profile and compact surface mount circulator on ball grid array - A surface mount circulator. The novel circulator includes a substrate, a predetermined number of microstrip lines disposed on a first surface of the substrate, a ground layer and a predetermined number of electrical contacts disposed on the second surface of the substrate, and a mechanism for coupling each microstrip line to one of the electrical contacts. In an illustrative embodiment, the circulator uses edge wrap metallization to wrap a microstrip line down a side of the substrate to connect with a corresponding contact. A ball grid array can then be used to connect the signal contacts and ground at the second surface of the substrate with a circuit board. The circulator also includes a magnet on first surface of the substrate over a resonator circuit connecting the microstrip lines and a pole piece on the second surface of the substrate beneath the ground to provide magnetic bias to the substrate. | 02-04-2010 |
| 20100066460 | WAVEGUIDE CIRCULATOR - A waveguide circulator comprising at least three waveguide arms intersecting at a junction, at least one ferrite element positioned within the junction, an impedance transformer and a recessed transformer. At least a portion of each of the at least three waveguide arms and the junction define a first wall and a second wall that are positioned in an opposing relationship. The impedance transformer is positioned in proximity to the at least one ferrite element and projects from the first wall. The recessed transformer is positioned in proximity to the impedance transformer and is recessed within the first wall. | 03-18-2010 |
| 20100079215 | SYSTEM, APPARATUS AND METHOD FOR DISSIPATING STANDING WAVE IN A MICROWAVE DELIVERY SYSTEM - A system, apparatus and method for dissipating standing waves in a microwave energy delivery system including a microwave energy source configured to intermittently delivery microwave energy as a periodic microwave signal an energy delivery network configured to transmit the periodic microwave signal and a circuit connected between the microwave energy source and the energy delivery network. The circuit is configured to pass the periodic microwave signal from the microwave energy source to the energy delivery network when the periodic microwave signal is present and to dissipate standing waves when the periodic microwave signal is absent. | 04-01-2010 |
| 20100102896 | MICROWAVE CIRCULATOR WITH THIN-FILM EXCHANGE-COUPLED MAGNETIC STRUCTURE - A microwave circulator uses a thin-film exchange-coupled structure to provide an in-plane magnetic field around the circulator. The exchange-coupled structure is a ferromagnetic layer having an in-plane magnetization oriented generally around the circulator and an antiferromagnetic layer exchange-coupled with the ferromagnetic layer that provides an exchange-bias field to the ferromagnetic layer. A plurality of electrically conductive ports are connected to the exchange-coupled structure. Each of the portions or legs of the circulator between the ports may have an electrical coil wrapped around it with each coil connected to an electrical current source. The ferromagnetic resonance (FMR) frequency of the exchange-coupled structure in the absence of an external magnetic field is determined by the properties of the material of ferromagnetic layer and the magnitude of the exchange-bias field due to the exchange-coupling of the ferromagnetic layer to the antiferromagnetic layer. If one or more of the optional coils is used, then the FMR frequency can be tuned by changing the current in the coil or coils to change the magnitude of the externally applied magnetic field. | 04-29-2010 |
| 20100109791 | CIRCULATOR/ISOLATOR WITH AN ASYMMETRIC RESONATOR - The present invention is directed to a circulator device that includes a housing defining an interior three-dimensional volume. The housing includes a plurality of port openings disposed therein. A gyromagnetic resonator stack is disposed in the housing. The gyromagnetic resonator stack includes a circuit disposed between a first ferrite disk and a second ferrite disk. The first ferrite disk and the second ferrite disks form a pair of ferrite disks having a ferrite disk centroid and a ferrite disk perimeter. The circuit including an asymmetric center resonator having a eccentric region characterized by a predetermined resonator geometry. The circuit further including an impedance matching transmission line structure coupled to an edge of the eccentric region proximate the ferrite disk perimeter and at least one 50 Ohm transmission line structure coupled to a non-eccentric portion of the asymmetric center resonator. Each of the impedance matching transmission line structure and the at least one 50 Ohm transmission line structure extending through corresponding port openings of the plurality of port openings. The impedance matching transmission line structure is characterized by a section geometry and a predetermined matching impedance. The predetermined matching impedance is a function of the section geometry and at least one performance parameter of the device is a function of the predetermined resonator geometry. | 05-06-2010 |
| 20100117754 | NON-RECIPROCAL CIRCUIT DEVICE - A non-reciprocal circuit device comprising a ground plate having pluralities of external projections, a resin member having a hole through which the ground plate is exposed, a garnet plate disposed in the hole of the resin member, a microstrip line member disposed on a main surface of the garnet plate, a partition member disposed on the microstrip line member, and a permanent magnet disposed on the partition member between a pair of metal cases in this order from bottom, at least part of the external projections of the ground plate extending through the hole of the resin member over an upper surface of the partition member, and being bent to enclose the garnet plate, the microstrip line member and the partition member. | 05-13-2010 |
| 20100141350 | High-Frequency Circuit Board, High-Frequency Circuit Module, and Radar Apparatus - The invention relates to a high-frequency circuit board that can efficiently radiate heat generated in a mounted electronic component without reducing the degree of freedom in design, a high-frequency circuit module including the high-frequency circuit board, and a radar apparatus including the high-frequency circuit module. A dielectric substrate ( | 06-10-2010 |
| 20100156551 | NON-RECIPROCAL CIRCUIT DEVICE - A non-reciprocal circuit device includes a ferrite arranged to receive a direct-current magnetic field from a permanent magnet, a first central electrode and a second central electrode arranged on the ferrite. The non-reciprocal circuit device further includes matching capacitors and a terminating resistor. When high frequency signals flow in a reverse direction, power consumption at the first central electrode is increased by decreasing an equivalent parallel resistance Rp of the first central electrode, in relation to power consumption at the terminating resistor. | 06-24-2010 |
| 20100207701 | Waveguide circulator - A waveguide circulator which does not cause an arcing phenomenon and deterioration of microwave characteristic, even when a ferrite member generates heat to raise a temperature thereof. The waveguide circulator is composed of a waveguide formed substantially in Y-shape with rectangular waveguides which are provided so as to position horizontally on a predetermined plane, and further they are extended in different three directions from junction positions of the waveguide wherein two ferrite members are placed in the junction positions thereof so as to oppose to each other on the upper and lower sides in the height direction perpendicular to the predetermined plane wherein an extended section extending in the height direction in the vicinities of the junction positions of the waveguides is formed, and a distance between the ferrite members is expanded to compensate decreased impedance. | 08-19-2010 |
| 20100259336 | SURFACE MOUNTABLE CIRCULATOR - The present invention is directed to a surface mountable circulator/isolator device that includes a first dielectric layer having an electric circuit formed thereon. A second center dielectric layer is disposed adjacent the first dielectric layer, the center dielectric layer including an opening formed therein, the opening being aligned relative to the electric circuit. A ferrite element is disposed in the opening such that the ferrite abuts the electric circuit and is aligned in two-dimensions relative to the electric circuit. A third dielectric layer is disposed adjacent the second center layer. The third dielectric layer includes a ground plane formed on each major surface thereof. The first dielectric layer, the second center dielectric layer, the ferrite element, and the third dielectric layer are bonded together to form a laminated multi-layer structure. A permanent magnet is bonded to the second ground plane. | 10-14-2010 |
| 20100315174 | CIRCULATOR/ISOLATOR HOUSING WITH INSERTS - A circulator/isolator housing is provided that includes body and a plurality of slots within the body configured to receive therethrough inserts having magnetic permeability. The housing further includes a plurality of receiving portions within the body corresponding to the plurality of slots and configured to maintain a position of the inserts. | 12-16-2010 |
| 20110068877 | MULTI-JUNCTION STRIPLINE CIRCULATORS - A multi-junction stripline circulator, comprising a housing with a cavity structure and a plurality of stripline junction circuits stacked within the cavity structure and connected in a cascade arrangement. Each stripline junction circuit comprises a stripline conductor having a plurality of ports, where one of the ports is connected to a port of a stripline conductor of each consecutive junction circuit in a cascade arrangement, and a pair of ferrite elements sandwiching the stripline conductor therebetween. The multi-junction stripline circulator further comprises one or more center ground planes, each having radial arms connected to ground. Each of the center ground planes are disposed between two consecutive stripline junction circuits in said cascade arrangement. Finally, the multi-junction stripline circulator also comprises a mutually shared magnetic biasing system provided within the cavity structure and magnetically biasing all the ferrite elements of the stripline junction circuits along a same direction. | 03-24-2011 |
| 20110193649 | INTEGRATED CIRCULATORS SHARING A CONTINUOUS CIRCUIT - The present invention is directed to a circuit assembly that includes an integrated circulator assembly. The circuit assembly has a first substrate, which contains a continuous circuit trace that includes a circulator component from the circulator assembly and at least one electrical component from the circuit assembly. A second substrate is disposed beneath the first substrate and includes a cladding on one surface. The second substrate contains an aperture that accepts a ferrite element, which is axially aligned with the circulator component of the circuit trace. A conductive material is placed across the ferrite element so that it forms a continuous ground plane with the cladding, which is common to the entire circuit trace. The circulator assembly also contains a magnet bonded to the ferrite element. The circulator assembly may also include a yoke disposed below the magnet to shield the circulator from external magnetic fields. | 08-11-2011 |
| 20110204989 | NON-RECIPROCAL CIRCUIT ELEMENT - A non-reciprocal circuit element includes first and second isolators of a high-pass type, each of the first and second isolators including a permanent magnet, a ferrite body to which a direct-current magnetic field is applied by the permanent magnet, and first and second center electrodes arranged on the ferrite body so as to cross each other in an insulated state. The first isolator has a passing frequency band that is higher than a passing frequency band of the second isolator. The first and second isolators include input portions that are electrically connected to define a single input port. A low pass filter is provided between the input port and the input portion of the second isolator. | 08-25-2011 |
| 20110234332 | CIRCUIT MODULE - In a circuit module, a core isolator includes a ferrite and a permanent magnet that is arranged to apply a direct-current field to the ferrite. A switch outputs to a signal path a high-frequency signal outputted from the core isolator. A SAW filter is provided on the signal path. A matching circuit is provided on the signal path and provides impedance matching between the output impedance of the core isolator and the input impedance of the SAW filter. | 09-29-2011 |
| 20120019332 | NONRECIPROCAL CIRCUIT ELEMENT - A nonreciprocal circuit element includes first and second center electrodes. On a ferrite to which a direct-current magnetic field is applied from a permanent magnet, the first and second center electrodes are insulated and intersect. First and second ends of the first center electrode are connected to an input port and an output port, respectively. First and second ends of the second center electrode are connected to the output port and a ground port, respectively. A first matching capacitor and a resistor are connected between the input port and the output port. A second matching capacitor is connected between the output port and the ground port. A parallel resonant circuit is connected in parallel to the resistor. A coupling element is connected between the parallel resonant circuit and another parallel resonant circuit including the first center electrode and the first matching capacitor so as to the parallel resonant circuits. | 01-26-2012 |
| 20120075032 | COMPOSITE ELECTRONIC MODULE AND METHOD OF MANUFACTURING COMPOSITE ELECTRONIC MODULE - An electronic component is mounted on a substrate so as to be in contact with a non-reciprocal circuit element. Therefore, there is no risk of the electronic component, which is arranged so as to be in contact with the non-reciprocal circuit element, being displaced as a result of being shifted by the magnetic force of permanent magnets included in the non-reciprocal circuit element and displacement of the electronic component as a result of being shifted by the magnetic force of the permanent magnets can be prevented. Therefore, since there is no risk of the electronic component being displaced by being shifted by the magnetic force of the permanent magnets, a space in which to mount a member that would function as an electromagnetic shield, such as a yoke, need not be provided on the substrate and the composite electronic module can be reduced in size and profile. | 03-29-2012 |
| 20120081189 | SYSTEMS AND METHODS FOR A STACKED WAVEGUIDE CIRCULATOR - Systems and methods for a stacked waveguide circulator are described. The stacked waveguide circulator may comprise a first side and a second side. The stacked waveguide circulator may also comprise a top and a bottom opposite the top. The top and the bottom may be adjacent to the first and second sides. The stacked waveguide circulator may also comprise a a first port and a second port on the first side. The first port may be vertically above the second port on the first side. Further, the stacked waveguide circulator may comprise a third port on the second side. The stacked waveguide circulator may comprise a first magnet on the top. The first magnet may be configured to assist in directing signals between the first, second, and third ports. | 04-05-2012 |
| 20120092086 | WAVEGUIDE MATCHING UNIT HAVING GYRATOR - A waveguide matching unit is disclosed. The waveguide matching unit includes a gyrator having first and second waveguides. The first waveguide includes first and second ports that are connected by a first waveguide channel. An RF signal propagating through the first waveguide channel is phase shifted by about 90° when propagating from the first to the second port, and is phase shifted by about 0° when propagating from the second port to the first port. The second waveguide includes third and fourth ports that are connected by a second waveguide channel. An RF signal propagating through the second waveguide channel is phase shifted by about 0° when propagating from the third to the fourth port, and is phase shifted by about 90° when propagating from the fourth port to the third port. | 04-19-2012 |
| 20120126910 | NONRECIPROCAL DEVICE - According to one embodiment, a nonreciprocal device includes a first component portion serving a circulator and a second component portion serving a circulator. The first component portion includes: a first carrier; a first Y junction-shaped line including three branch lines; first, second and third lines respectively connected to the three branch lines of the first Y junction-shaped line; and fourth and fifth lines. The second component portion includes: a second carrier plate provided on a back surface of the first carrier plate; a second Y junction-shaped line including three branch lines; sixth, seventh and eighth lines respectively connected to the three branch lines of the second Y junction-shaped line, one of the sixth, seventh and eighth lines being connected to one of the first, second and third lines, the other two of the sixth, seventh and eighth lines being respectively connected to the fourth and fifth lines. | 05-24-2012 |
| 20120133452 | EFFECTIVE SUBSTITUTIONS FOR RARE EARTH METALS IN COMPOSITIONS AND MATERIALS FOR ELECTRONIC APPLICATIONS - Embodiments disclosed herein include methods of modifying synthetic garnets used in RF applications to reduce or eliminate Yttrium or other rare earth metals in the garnets without adversely affecting the magnetic properties of the material. Some embodiments include substituting Bismuth for some of the Yttrium on the dodecahedral sites and introducing one or more high valency ions to the octahedral and tetrahedral sites. Calcium may also be added to the dodecahedral sites for valency compensation induced by the high valency ions, which could effectively displace all or most of the Yttrium (Y) in microwave device garnets. The modified synthetic garnets with substituted Yttrium (Y) can be used in various microwave magnetic devices such as circulators, isolators and resonators. | 05-31-2012 |
| 20120280760 | APPARATUS AND METHODS RELATED TO FERRITE BASED CIRCULATORS - Apparatus and methods related to ferrite based circulators are disclosed. A ferrite disk used in a circulator can be configured to reduce intermodulation distortion when routing radio-frequency signals having closely spaced frequencies. Such a reduction in intermodulation distortion can be achieved by adjusting magnetization at the edge portion of the ferrite disk. By way of an example, a ferrite disk with a reduced saturation magnetization (4 PiMs) edge portion can reduce intermodulation distortion. Example configurations with such a reduced 4 PiMs edge portions are disclosed. | 11-08-2012 |
| 20130154757 | COMPOSITE ELECTRONIC MODULE - In a composite electronic module, electronic components including magnetic substances are mounted on a substrate such that lines of magnetic force generated by a permanent magnet of a non-reciprocal circuit element are concentrated to the non-reciprocal circuit element side. Therefore, even when a metal yoke is omitted, for example, it is possible to reduce the number of lines of magnetic force generated by the permanent magnet and which leak to the outside of the substrate, and hence to significantly reduce and prevent the influence of a magnetic field generated by the permanent magnet upon other electronic components that are arranged near or adjacent to the composite electronic module around the substrate. | 06-20-2013 |
| 20130176083 | CIRCUIT MODULE - In a circuit module in which a plurality of non-reciprocal circuit elements, each of which does not have a yoke, are mounted, the occurrence of magnetic coupling between the non-reciprocal circuit elements is significantly reduced and prevented. Core isolators are not arranged such that, in a state in which the direction of magnetic flux and the direction of magnetic flux are the same, the core isolators are aligned in the direction of the magnetic flux. Specifically, the core isolators generate the magnetic flux from left to right. The core isolators are aligned so as to be inclined relative to the magnetic flux. Thus, extension of the magnetic flux through the core isolator in a state of being directed in the same direction as that of the magnetic flux is significantly reduced and prevented. | 07-11-2013 |
| 20130181786 | CIRCUIT MODULE - A circuit module having reduced magnetic coupling between core isolators. A substrate body includes principal surfaces. A core isolator includes a ferrite, a permanent magnet that applies a DC magnetic field to the ferrite, a first center electrode provided for the ferrite and including one end connected to an input port and another end connected to an output port, and a second center electrode provided for the ferrite so as to intersect the first center electrode insulated from the second center electrode and that includes one end connected to the output port and another end connected to a ground port. The core isolator also includes no yokes preventing leakage of the DC magnetic field to the outside. The core isolators are mounted on the respective principal surfaces such that directions of the DC magnetic fields are parallel or substantially parallel to the principal surface. | 07-18-2013 |
| 20130271232 | GANGED CIRCULATOR DEVICE - A ganged circulator device for isolating a transmitter and increasing the power level, isolation performance, and input VSWR performance of an IBOC combiner module is provided. The ganged circulator device includes an input power divider, a ganged circulator module, and an output power combiner. The input power divider includes a first input port, a second input port, and a plurality of output ports. The ganged circulator module includes a plurality of circulators and a plurality of load resistors. The module also includes input ports corresponding to and electrically connected to the plurality of output ports on the input power divider. The output power combiner includes a first output port, a second output port, and plurality of input ports corresponding to and electrically connected to a plurality of output ports of the ganged circulator module. An input signal is applied at the first input port of the input power divider, and an output signal is transmitted from the second output port of the power combiner. A first load resistor is electrically connected to the second input port of the power divider, and a second load resistor is connected to the first output port of the power combiner. | 10-17-2013 |
| 20130285759 | NON-RECIPROCAL CIRCUIT ELEMENT - There is provided a non-reciprocal circuit element which has a simple structure and superiority in assembly and allows easy achievement of height reduction and size reduction while preventing fracture of a ferrite plate. In the present invention, a central conductor | 10-31-2013 |
| 20130321090 | APPARATUS AND METHODS RELATED TO JUNCTION FERRITE DEVICES HAVING IMPROVED INSERTION LOSS PERFORMANCE - Disclosed are apparatus and methods related to junction ferrite devices having improved insertion loss performance. In some implementations, a ferrite disk assembly can be configured for a radio-frequency (RF) circulator. The disk assembly can include a ferrite-based disk having a ferrite portion and a metalized layer formed on a grounding surface of the disk to improve electrical contact between the grounding surface of the disk with an external grounding surface. The ferrite-based disk can further include a dielectric portion disposed around the periphery of the ferrite center portion. In some embodiments, the metalized layer can be a silver layer formed on the grounding surface of the disk and having a desired thickness. | 12-05-2013 |
| 20130321091 | NON-RECIPROCAL CIRCUIT DEVICE AND RADIO COMMUNICATION TERMINAL DEVICE - A non-reciprocal circuit device includes a magnetic core, a permanent magnet that applies a DC field to the magnetic core, a plurality of central conductors that are insulated from each other and cross each other at a specified angle, and at least one subsidiary conductor that is arranged on the magnetic core adjacent to at least one of the central conductors. The subsidiary conductor is magnetically coupled with the central conductor adjacent thereto via the magnetic core. | 12-05-2013 |
| 20140049332 | SWITCHING FERRITE CIRCULATOR WITH AN ELECTRONICALLY SELECTABLE OPERATING FREQUENCY BAND - A ferrite element for a switchable circulator comprises a first segment extending in a first direction from a center portion of the ferrite element; a second segment extending in a second direction from the center portion of the ferrite element; and a third segment extending in a third direction from the center portion of the ferrite element. Each of the first segment, the second segment, and the third segment include a first channel located at a first distance from a center point of the ferrite element. The first distance defines a first resonant section of the ferrite element. Each of the first segment, the second segment, and the third segment also include a second channel located at a second distance from the center point. The second distance defines a second resonant section of the ferrite element. | 02-20-2014 |
| 20140049333 | FERRITE CIRCULATOR WITH ASYMMETRIC FEATURES - A ferrite element for a circulator comprises a first segment extending in a first direction from a center portion of the ferrite element; a second segment extending in a second direction from the center portion of the ferrite element; and a third segment extending in a third direction from the center portion of the ferrite element. Each of the first segment, the second segment, and the third segment has a respective width and include a channel located at a respective distance from a center point of the ferrite element. At least one of the respective width of each segment or the respective distance from the center point for the channel in each segment is different for each respective segment such that the first segment operates over a first frequency sub-band, the second segment operates over a second frequency sub-band, and the third segment operates over a third frequency sub-band. | 02-20-2014 |
| 20140049334 | WAVEGUIDE CIRCULATOR WITH TAPERED IMPEDANCE MATCHING COMPONENT - Systems and methods for a waveguide circulator with tapered matching component are provided. In certain embodiments, a waveguide structure comprises a plurality of waveguide arms; an internal cavity; a plurality of tapered matching components, wherein each tapered matching component in the plurality of tapered matching components has a narrow taper end that is connected to the internal cavity and a wide taper end that is connected to a waveguide arm in the plurality of waveguide arms, wherein the narrow taper end is narrower than the wide taper end; and a ferrite element having ferrite element segments disposed in the internal cavity, wherein a segment extends through the narrow taper end and the narrow taper end of the tapered matching component is narrower than the wide taper end such that a magnitude of impedance difference between each waveguide arm and the internal cavity containing the ferrite element is reduced. | 02-20-2014 |
| 20140049335 | RECONFIGURABLE SWITCHING ELEMENT FOR OPERATION AS A CIRCULATOR OR POWER DIVIDER - A device comprises a waveguide structure that includes multiple arms extending from the structure, wherein the arms connect to the structure; a switching element disposed in the structure and having multiple segments, each segment being associated with a waveguide arm, wherein the switching element has an E-plane aperture extending through the switching element, wherein the E-plane aperture is aligned perpendicularly to the H-plane; and an E-plane magnetizing winding inserted through the E-plane aperture such that current applied to the E-plane magnetizing winding establishes a magnetic field in the switching element that is aligned with the H-plane. In a further embodiment, the structure includes an H-plane aperture formed through each segment, the H-plane aperture aligned with the H-plane; and an H-plane magnetizing winding inserted through the H-plane apertures, wherein current applied to the H-plane magnetizing winding establishes a magnetic field in the switching element that is not aligned with the H-plane. | 02-20-2014 |
| 20140167873 | NON-RECIPROCAL GYROMAGNETIC PHASE SHIFT DEVICES USING MULTIPLE FERRITE-CONTAINING SLABS - A non-reciprocal gyromagnetic phase shift device for microwave signals is provided. The device has a section of waveguide with at least two stacked chambers in each of which ferrite-containing slabs are arranged opposite one another on top and bottom walls of the stacked chambers along a common axis, in use a magnetic field being applied to the section of waveguide along the common axis along which are positioned the ferrite-containing slabs. The phase shift device proposed may be used in different microwave circuits. For example, it may be combined with a folded magic tee and a 3 dB hybrid coupler in order to form a 4-port differential phase shift circulator. | 06-19-2014 |
| 20140285278 | FERRITE CIRCULATOR WITH ASYMMETRIC DIELECTRIC SPACERS - A circulator for a waveguide is provided. The circulator comprises a waveguide housing including a central cavity, and a ferrite element disposed in the central cavity of the waveguide housing, with the ferrite element including a first surface and an opposing second surface. The circulator also comprises a pair of asymmetric dielectric spacers including a first dielectric spacer located on the first surface of the ferrite element, and a second dielectric spacer located on the second surface of the ferrite element. | 09-25-2014 |
| 20140285279 | WAVEGUIDE CIRCULATOR WITH IMPROVED TRANSITION TO OTHER TRANSMISSION LINE MEDIA - A waveguide circulator for an electro-magnetic field having a wavelength is provided. The waveguide circulator includes: N waveguide arms, where N is a positive integer; a ferrite element having N segments protruding into the N respective waveguide arms; at most (N−1) quarter-wave dielectric transformers attached to respective ends of at most (N−1) other segments; a first quarter-wave dielectric transformer attached to an end of the first segment; and a coaxial-coupling component. The N waveguide arms include a first-waveguide arm and (N−1) other-waveguide arms. The N segments include a first segment protruding into the first-waveguide arm and (N−1) other segments protruding into respective (N−1) other-waveguide arms. The coaxial-coupling component is positioned within a quarter wavelength of the electro-magnetic field from the first quarter-wave dielectric transformer positioned in the first-waveguide arm. | 09-25-2014 |
| 20140320227 | MODULAR FERRITE SWITCH FOR CONSTRUCTING SWITCH NETWORKS - Systems and methods for a modular ferrite switch for constructing switch networks are provided. In one implementation, a circulator redundancy network comprises multiple inputs; multiple outputs; and multiple circulator modules that connect the inputs to the outputs. A circulator module includes at least one module input connected to at least one input; at least one module output, where the number of module outputs equals the number of module inputs; multiple interconnection ports, configured to connect the circulator module to other circulator modules; and multiple circulators that route received signals between the at least one input, the at least one output, and the interconnection ports. Further, multiple interconnects connect the plurality of circulator modules to one another at the interconnection ports; and a circulator switch controller controls the direction of circulation for the plurality of circulators. | 10-30-2014 |
| 20140320228 | NON-RECIPROCAL CIRCUIT ELEMENT, COMMUNICATION APPARATUS EQUIPPED WITH CIRCUIT INCLUDING NON-RECIPROCAL CIRCUIT ELEMENT, AND MANUFACTURING METHOD OF NON-RECIPROCAL CIRCUIT ELEMENT - A circulator includes a ferrite disposed above a PCB, a metal cover that covers above the ferrite and is formed integrally, a plurality of connection parts that electrically connect the metal cover to a plurality of respective signal transmission lines above the PCB, and a permanent magnet that applies a magnetic field to the ferrite. Thus, it is possible to provide, for example, a non-reciprocal circuit element that is composed of a small number of parts and can be easily mounted on a circuit board, a communication apparatus equipped with a circuit including the non-reciprocal circuit element, and a manufacturing method of a non-reciprocal circuit element. | 10-30-2014 |
| 20140340165 | FERRITE CIRCULATOR WITH INTEGRATED E-PLANE TRANSITION - A waveguide circulator system for an E-plane-layer transition includes a first waveguide including: at least N waveguide arms, and a first-interface aperture spanning a first X-Y plane on a bottom surface of a first waveguide arm, a ferrite element having N segments protruding into the N respective waveguide arms of the first waveguide; an E-plane-transition waveguide having a first open-end and a second opposing open-end; and a second waveguide including a second-interface aperture spanning a second X-Y. The first-interface aperture is arranged to proximally overlap the first open-end. The second second-interface aperture of the second waveguide and the second-interface aperture is arranged to proximally overlap the second open-end. At least a portion of the first segment of the ferrite element protrudes into a volume extending between the first-interface aperture on the bottom surface of the first waveguide arm and an opposing top surface of the first waveguide arm. | 11-20-2014 |
| 20140340166 | NON-RECIPROCAL CIRCUIT ELEMENT - A non-reciprocal circuit element includes a ferrite, a first central electrode and a second central electrode that are arranged on the ferrite so as to cross each other in an insulated state, and a permanent magnet configured to apply a DC magnetic field to a portion where the first and second central electrodes cross each other. One end of the first central electrode defines an input port and the other end thereof defines an output port. One end of the second central electrode defines the input port and the other end thereof defines a ground port. A resistance element and a capacitance element which are connected in parallel with each other are connected in series between the input port and the output port. A switching capacitance unit configured to switch a capacitance is connected in parallel with the resistance element between the input port and the output port. | 11-20-2014 |
| 20140354368 | COMBINED-BRANCHED-FERRITE ELEMENT WITH INTERCONNECTED RESONANT SECTIONS FOR USE IN A MULTI-JUNCTION WAVEGUIDE CIRCULATOR - The present application relates to a combined-branched-ferrite element including at least two branched-ferrite elements, the branched-ferrite elements having three branches. At least one of the three branches in the ferrite elements is connected to a branch of another one of the ferrite elements to form at least one connected-branch. The unconnected branches are input/output (I/O) branches and include input/output (I/O) apertures in respective I/O branch planes that divide the respective I/O branches into resonator sections and return-path sections. At least one connected-aperture in the at least one connected-branch that connects two ferrite elements is in a respective connected-branch plane that separates the connected-branch so that: the resonator section of the connected-branch for a first-branched-ferrite element is a return-path section of the connected-branch for a second-branched-ferrite element; and the resonator section of the connected-branch for the second-branched-ferrite element is a return-path section of the connected-branch for the first-branched-ferrite element. | 12-04-2014 |
| 20150028961 | DUAL STRIPLINE TILE CIRCULATOR UTILIZING THICK FILM POST-FIRED SUBSTRATE STACKING - A dual stacked stripline circulator includes multiple composite ferrite discs, each having an inner portion and an outer portion; a first substrate having an edge with a first composite ferrite disc disposed in the first substrate; a second substrate having an edge with a second composite ferrite disc disposed in the second substrate; a third substrate having an edge with a third composite ferrite disc disposed in the third substrate, the third substrate disposed adjacent the second substrate; a fourth substrate having an edge with a fourth composite ferrite disc disposed in the fourth substrate; a first pattern defining three ports of a first three-port circulator disposed between the first substrate and the second substrate; a second pattern defining three ports of a second three-port circulator disposed between the third substrate and the fourth substrate; and a metal film encircling the edge of the first, second, third and fourth substrate. | 01-29-2015 |
| 20150042411 | FERRITE CIRCULATOR WITH REDUCED-HEIGHT TRANSFORMERS - A circulator comprises a waveguide housing having a plurality of hollow waveguide arms that communicate with a central cavity, the waveguide housing having a height defined by a plurality of waveguide sidewalls between a waveguide floor and a waveguide ceiling. A ferrite element is disposed in the central cavity of the waveguide housing, with the ferrite element including a central portion. The ferrite element further includes a plurality of ferrite segments that each extend from the central portion and terminate at a distal end. A plurality of dielectric transformers each having an upper surface protrude into the waveguide arms away from the central cavity along the waveguide floor. The dielectric transformers have a height that is less than the height of the waveguide housing such that the upper surface of the transformers is separated from the waveguide ceiling by a gap. | 02-12-2015 |
| 20150061788 | NON-RECIPROCAL CIRCUIT DEVICE - In a non-reciprocal circuit device, a first center conductor, a second center conductor, and a third center conductor are disposed on a ferrite, to which a direct current magnetic field is applied by a permanent magnet, so as to be insulated from one another and so as to intersect with one another. One end of the first center conductor defines a first port, one end of the second center conductor defines a second port, and one end of the third center conductor defines a third port. The first port is connected to a first terminal, the second port is connected to a second terminal, and the third port is connected to a third terminal. The other ends of the respective center conductors are connected to one another, which is connected to a ground. Capacitance elements are connected in parallel to the respective center conductors. | 03-05-2015 |
| 20150070101 | NON-RECIPROCAL CIRCUIT ELEMENT - In a non-reciprocal circuit element, first to third center conductors intersect one another in an insulated state around a microwave magnetic body, and first ends of the first to third center conductors define first to third ports. A first capacitance element is connected to the first center conductor in parallel and a second capacitance element is connected to the second center conductor in parallel, and the other ends of the first to third center conductors are connected to one another and are grounded via a first inductance element and a third capacitance element that are connected in series. A second inductance element is connected to one end of the center conductor in parallel, and the other end of the second inductance element is grounded. A fourth capacitance element is connected to a connection point between the one end of the center conductor and the second inductance element, and the other end of the fourth capacitance element is connected to a third terminal. | 03-12-2015 |
| 20150102869 | DISTRIBUTEDLY MODULATED CAPACITORS FOR NON-RECIPROCAL COMPONENTS - An apparatus and method for realizing non-reciprocal components, such as isolators and circulators, for operation over a broad bandwidth without requiring magnetic components/material which would prevent integrated circuit manufacture utilizing standard processes is presented. In one example, a circulator is described including varactor diodes coupled at each unit cell in a balanced manner between halves of a differential signal path and halves of a differential carrier path. In another example, variable capacitors are coupled at each unit cell between a signal path and ground, and having a tuning input of the variable capacitor receiving a signal from a carrier path. | 04-16-2015 |
| 20150109066 | NON-RECIPROCAL CIRCUIT ELEMENT, MODULE OF THE SAME, AND TRANSMISSION AND RECEPTION MODULE - A non-reciprocal circuit element includes a ferrite to which a direct current magnetic field is applied by a permanent magnet, and first and second center electrodes arranged on the ferrite so as to intersect with and be insulated from each other. One end of the first center electrode is connected to a first port and the other is connected to a second port. One end of the second center electrode is connected to the second port and the other is connected to a ground port. A first capacitor and a resistor connected in parallel are connected between the first and second ports and a second capacitor is connected between the second and ground ports. An input/output terminal of at least one filter is connected between the first or second port and the resistor and the ground terminal thereof is connected to the second or first port. | 04-23-2015 |
| 20150130550 | MATERIALS, DEVICES AND METHODS RELATED TO BELOW-RESONANCE RADIO-FREQUENCY CIRCULATORS AND ISOLATORS - Materials, devices and methods related to below-resonance radio-frequency (RF) circulators and isolators. In some embodiments, a circulator can include a conductor having a plurality of signal ports, and one or more magnets configured to provide a magnetic field. The circulator can further include one or more ferrite disks implemented relative to the conductor and the one or more magnets so that an RF signal can be routed selectively among the signal ports due to the magnetic field. Each of the one or more ferrite disks can include synthetic garnet material having dodecahedral sites, octahedral sites and tetrahedral sites, with bismuth (Bi) occupying at least some of the dodecahedral sites, and aluminum (Al) occupying at least some of the tetrahedral sites. Such synthetic garnet material can be represented by a formula Y | 05-14-2015 |
| 20150137904 | MICROWAVE DEVICE USING MAGNETIC MATERIAL NANO WIRE ARRAY AND MANUFACTURING METHOD THEREOF - Provided herein is a microwave device using a magnetic material nano wire array and a manufacturing method thereof, the device including a template having a nano hole array filled with a metal magnetic material. | 05-21-2015 |
| 20150311574 | NON-RECIPROCAL CIRCUIT ELEMENT - In a non-reciprocal circuit element, first to third center conductors intersect one another in an insulated state around a microwave magnetic body, and first ends of the first to third center conductors define first to third ports. A first capacitance element is connected to the first center conductor in parallel and a second capacitance element is connected to the second center conductor in parallel, and the other ends of the first to third center conductors are connected to one another and are grounded via a first inductance element and a third capacitance element that are connected in series. A second inductance element is connected to one end of the center conductor in parallel, and the other end of the second inductance element is grounded. A fourth capacitance element is connected to a connection point between the one end of the center conductor and the second inductance element, and the other end of the fourth capacitance element is connected to a third terminal. | 10-29-2015 |
| 20150357697 | FERRITE CIRCULATOR WITH ASYMMETRIC DIELECTRIC SPACERS - A circulator for a waveguide is provided. The circulator comprises a waveguide housing including a central cavity, and a ferrite element disposed in the central cavity of the waveguide housing, with the ferrite element including a first surface and an opposing second surface. The circulator also comprises a pair of asymmetric dielectric spacers including a first dielectric spacer located on the first surface of the ferrite element, and a second dielectric spacer located on the second surface of the ferrite element. | 12-10-2015 |
| 20160013530 | SYSTEMS AND METHODS FOR FERRITE REDUNDANCY SWITCH NETWORKS | 01-14-2016 |
| 20160028139 | IMPEDANCE MATCHING IN VERY HIGH DIELECTRIC CONSTANT ISOLATOR/CIRCULATOR JUNCTIONS - Disclosed are embodiments of isolator/circulator junctions that can be used for radio-frequency (RF) applications, and methods of manufacturing the junctions. The junctions can have excellent impedance matching, even as they are being miniaturized, providing significant advantages over previously used junctions. The junctions can be formed of both high and low dielectric constant material. | 01-28-2016 |
| 20160049712 | MULTI-JUNCTION WAVEGUIDE CIRCULATOR USING DUAL CONTROL WIRES FOR MULTIPLE FERRITE ELEMENTS - In at least one embodiment, a circulator module comprises circulators. Each circulator comprises: an internal cavity; ports extending from the internal cavity wherein at least one port connects the circulator to another circulator; and a ferrite element disposed in the internal cavity, the ferrite element including an aperture. The circulator module further comprises a first control wire, wherein a first portion of the first control wire is disposed in an aperture of the ferrite element of the first circulator and wherein a second portion of the first control wire is disposed in an aperture of the ferrite element of the second circulator; and, a second control wire, wherein a first portion of the second control wire is disposed in an aperture of the ferrite element of the first circulator and wherein the second control wire is not disposed in an aperture of the ferrite element of the second circulator. | 02-18-2016 |
| 20160087324 | WAVEGUIDE CIRCULATOR WITH IMPROVED TRANSITION TO OTHER TRANSMISSION LINE MEDIA - A waveguide circulator for an electro-magnetic field having a wavelength is provided. The waveguide circulator includes: N waveguide arms, where N is a positive integer; a ferrite element having N segments protruding into the N respective waveguide arms; at most (N−1) quarter-wave dielectric transformers attached to respective ends of at most (N−1) other segments; a first quarter-wave dielectric transformer attached to an end of the first segment; and a coaxial-coupling component. The N waveguide arms include a first-waveguide arm and (N−1) other-waveguide arms. The N segments include a first segment protruding into the first-waveguide arm and (N−1) other segments protruding into respective (N−1) other-waveguide arms. The coaxial-coupling component is positioned within a quarter wavelength of the electro-magnetic field from the first quarter-wave dielectric transformer positioned in the first-waveguide arm. | 03-24-2016 |
| 20160149284 | FERRITE CIRCULATOR WITH REDUCED-HEIGHT TRANSFORMERS - A circulator comprises a waveguide housing having a plurality of hollow waveguide arms that communicate with a central cavity, the waveguide housing having a height defined by a plurality of waveguide sidewalls between a waveguide floor and a waveguide ceiling. A ferrite element is disposed in the central cavity of the waveguide housing, with the ferrite element including a central portion. The ferrite element further includes a plurality of ferrite segments that each extend from the central portion and terminate at a distal end. A plurality of dielectric transformers each having an upper surface protrude into the waveguide arms away from the central cavity along the waveguide floor. The dielectric transformers have a height that is less than the height of the waveguide housing such that the upper surface of the transformers is separated from the waveguide ceiling by a gap. | 05-26-2016 |
| 20160181680 | MULTI-JUNCTION WAVEGUIDE CIRCULATORS WITH SHARED DISCONTINUOUS TRANSFORMERS | 06-23-2016 |
| 20160197390 | NONREVERSIBLE CIRCUIT DEVICE | 07-07-2016 |
| 20160254580 | NON-RECIPROCAL CIRCUIT DEVICE AND COMMUNICATION APPARATUS USING THE SAME | 09-01-2016 |
| 20160254581 | NON-RECIPROCAL CIRCUIT DEVICE AND COMMUNICATION APPARATUS USING THE SAME | 09-01-2016 |
| 20160380323 | SYSTEMS AND METHODS FOR USING POWER DIVIDERS FOR IMPROVED FERRITE CIRCULATOR RF POWER HANDLING - Systems and methods for using power dividers for improved ferrite circulator RF power handling are provided. In one embodiment, a method for switching RF power using a high power circulator switch comprises: operating a ferrite circulator switch to direct RF power to either a first output port or a second output port, the ferrite circulator switch comprising at least three ferrite circulators arranged as a triad switch, wherein a first circulator is coupled to the first output port, a second circulator is coupled to the second output port; and using a waveguide power divider coupled between the first circulator and the second circulator, distributing reflected RF power received at the first output port or the second output port between a plurality of waveguide loads. | 12-29-2016 |
| 20180026323 | NON-RECIPROCAL CIRCUIT DEVICE, HIGH-FREQUENCY CIRCUIT, AND COMMUNICATION DEVICE | 01-25-2018 |
| 20190148806 | BELOW RESONANCE CIRCULATOR AND METHOD OF MANUFACTURING THE SAME | 05-16-2019 |
