| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 333117000 | Including hybrid-type network | 48 |
| 20080309428 | Antenna with High Isolation - Provided is an antenna with high isolation. The high-isolation antenna has transmission ports of a transmission radiating body and reception ports of a reception radiating body highly isolated from each other by using a quadrature hybrid coupler. The antenna includes: a transmission radiating body having two feed points for transmitting signals; a reception radiating body having two feed points for receiving signals; a transmission hybrid coupler which is connected to the two feed points of the transmission radiating body and transmits transmission signals which have a phase difference of 90° with each other; and a reception hybrid coupler which is connected to the two feed points of the reception radiating body and receives reception signals which have a phase difference of 90° with each other. The signals leaking from the two feed points of the transmission radiating body to the two feed points of the reception radiating body are offset. | 12-18-2008 |
| 20090284326 | Balanced hybrid coupler - A balanced hybrid coupler comprising four identical pairs of quarter wavelength parallel coupled lines, | 11-19-2009 |
| 20090302969 | COMMUNICATING OVER COAXIAL CABLE NETWORKS - A method for communicating over a coaxial cable network is described. The method includes identifying at least one port in the coaxial cable network that provides high mutual isolation among nodes of the coaxial cable network when the port is terminated with an impedance that matches a characteristic impedance of coaxial cable in the coaxial cable network. The method also includes terminating the identified port with an impedance that is substantially mismatched with the characteristic impedance of the coaxial cable, and transmitting a signal from a first node in the network to a second node in the network. | 12-10-2009 |
| 20100045403 | MINIATURE 180 DEGREE HYBRID COUPLER - A 180° hybrid coupler ( | 02-25-2010 |
| 20100102899 | WAVEGUIDE ANTENNA FRONT END - In some embodiments of the present invention, an antenna front end includes at least two diplexers. Each of the diplexers is defined with a channel within a single material block. Each channel is shaped to provide a diplexer which includes a coupler, a receive band filter and a transmit band filter, which are adjoined and matched to form a continuous waveguide channel. Some embodiments further include a transmit hybrid coupler and/or a receive hybrid coupler. The transmit hybrid coupler is formed as a channel within the material block and adjoined and matched to the two transmit band filters. The receive hybrid coupler is formed as a channel within the material block and adjoined and matched to the two receive band filters. | 04-29-2010 |
| 20100201457 | HYBRID BALUN APPARATUS - A hybrid balun apparatus are disclosed. The hybrid balun apparatus can support both the reception mode and the transmission mode and be advantageous for a high level of integration, by replacing two transformers disposed at a reception path and a transmission path with a single transformer and integrating a T/R switch and a balun into a one chip. Therefore, an IC according to integration extends to a front stage of an antenna to facilitate interfacing between elements, and a burden for designing at a rear stage (i.e., LNA in the reception mode, and PA in the transmission mode) can be reduced. | 08-12-2010 |
| 20100259339 | ACTIVE HYBRIDS FOR ANTENNA SYSTEMS - In an exemplary embodiment, a fully monolithic active hybrid architecture can be configured to replace a ring hybrid, magic tee, branchline coupler, or 180° hybrid by providing similar functionality in an integrated monolithic solution. Exemplary embodiments of the active hybrids combine active implementations of power splitters, power combiners, and phase shifting elements in a novel fashion allowing for ultra-compact size and broadband performance. In an exemplary embodiment, the active hybrid replaces the typical hybrid couplers with active splitters and active combiners. Similarly, the delay lines and amplitude adjustment elements are replaced by active vector generators. Vector generators are magnitude and phase control circuits. The active hybrid results in certain advantages including being size independent of the operating frequency, wide frequency range of operation, and RF signals undergo a neutral or slight positive power gain, rather than power losses that occur in the passive prior art systems. | 10-14-2010 |
| 20110260807 | COMPACT ORTHO-MODE TRANSDUCER - Ortho-mode transducer, with dual band frequency which is provided with a turnstile connection and an OMT-connection, where the ports of one of the bands or first band, are aligned with a longitudinal axis of the ortho-mode transducer arrangement, whereas the ports of the other band or second band, are arranged transversally to the longitudinal axis of the ortho-mode transducer, due to this configuration the branches from the turnstile connection to the OMT-connection are symmetrical two by two and compact having a C-shaped configuration and arranged so that they are facing two by two, with a dual Power Distribution circuit housed in an interior space defined by the branches or arms for the second band; due to this configuration, as well as reducing the space in a circular polarisation, neither sheet polarisers nor septums are required, and furthermore the transducer serves both for circular and linear polarisations. | 10-27-2011 |
| 20110309894 | PLANAR ASYMMETRIC CROSSOVER COUPLER - A planar asymmetric crossover coupler has a first branch to a seventh branch. The first branch to the fourth branch form a first region having a first port and a fourth port. The fourth branch to the seventh branch form a second region having a second port and a third port. The characteristic impedance of each branch is determined according to the load impedance and power distribution ratio of each port. | 12-22-2011 |
| 20120139660 | ELECTRONIC CIRCUIT - An electronic circuit includes: a first resistor having a first terminal and a second terminal; a first transmission line that is coupled to the first terminal of the first resistor, has a first terminal to which a first input signal is input, and has a second terminal outputting a first output signal having a phase difference with respect to the first input signal; and a second transmission line that is coupled to the second terminal of the first resistor, has a first terminal to which a second input signal having a phase difference with respect to the first input signal is input, and has a second terminal outputting a second output signal having a phase difference with respect to the second input signal and having, the phase difference being smaller than a phase difference between the first input signal and the second input signal with respect to the first output signal. | 06-07-2012 |
| 20120200370 | LADDER QUADRATURE HYBRID - Embodiments of circuits, apparatuses, and systems for a quadrature hybrid circuit are disclosed. Other embodiments may be described and claimed. | 08-09-2012 |
| 20120256699 | WIDE-BAND MICROWAVE HYBRID COUPLER WITH ARBITRARY PHASE SHIFTS AND POWER SPLITS - A device for coupling microwave signals with arbitrary phase shifts and power split ratios over broadband may comprise a first branch comprising a cascade of first stripline sections connected to one another. A second branch may comprise a cascade of second stripline sections connected to one another. A single stripline section and a capacitor may be coupled in series to at least one of the branches. The first stripline sections of the first branch and the corresponding second stripline sections of the second branch form broadside coupled stripline sections. Those cascaded coupled stripline sections may be arranged to have a monotonically changing horizontal offsets but at a uniform vertical distance. | 10-11-2012 |
| 20120306590 | Band Combining Filter - A band combining filter for filtering a microwave signal having at least one band edge at a band edge transition frequency. The filter comprises a plurality of filter sections. Each filter section comprising 3dB hybrid couplers having input ports and output ports and resonators connected between the input ports and the output ports of the couplers. | 12-06-2012 |
| 20130120077 | HYDROCARBON RESOURCE PROCESSING DEVICE INCLUDING A HYBRID COUPLER AND RELATED METHODS - A device for processing a hydrocarbon resource may include a radio frequency (RF) source, a first RF conductor, a second RF conductor, and a hybrid coupler assembly coupled to the RF source and the first and second RF conductors. The first and second RF conductors may each having distal ends configured to receive the hydrocarbon resource therebetween and apply RF power from the RF source to the hydrocarbon resource. | 05-16-2013 |
| 20130271237 | Diplexer for Homodyne FMCW-Radar Device - A diplexer for a homodyne FMCW-radar device, which is distinguished by small dimensions of its hollow conductor structure and therefore can be manufactured simply and cost effectively. The hollow conductor structures of the diplexer can be cut out from two half shells, and the latter joined to form the diplexer. Various materials provide options for the material of the half shells. | 10-17-2013 |
| 20130321097 | VSWR TOLERANT TUNABLE HYBRID DUPLEXER - The disclosure describes a dual hybrid duplexer including two hybrid couplers, two intra-filters, a tunable isolation load, and a phase shifter. The phase shifter may be located at the isolation port. The phase shifter may be located at the antenna port. In one embodiment, a dual hybrid duplexer includes two hybrid couplers, two intra-filters, a tunable isolation load, a first phase shifter located at the isolation port, and a second phase shifter located at the antenna port. The first and second phase shifters have a difference of 90 degrees (plus or minus 10 degrees). | 12-05-2013 |
| 20140049337 | AMPLIFIER MODULE - The invention relates to an amplifier module, comprising at least one amplifier (PA), an antenna port (ANT), a transmission port (TX), a reception port (RX), and a circuit arrangement having at least three 90 DEG hybrids (HYB | 02-20-2014 |
| 20140085019 | SYMMETRICAL HYBRID COUPLER - The present invention is directed to a hybrid coupler device that includes a first transmission line structure and a second transmission line structure. The first transmission line structure is interdigitally coupled with the second transmission line structure such that each transmission line in the second transmission line structure is disposed adjacent to a transmission line in the first transmission line structure. The coupling or the mutual capacitance C | 03-27-2014 |
| 20140125427 | WIDE BAND SUM & DIFFERENCE CIRCUIT FOR MONOLITHIC MICROWAVE INTEGRATED CIRCUIT - Disclosed is a wide band sum & difference circuit for a monolithic microwave integrated circuit according to an exemplary embodiment of the present invention. The wide band sum & difference circuit for a monolithic microwave integrated circuit according to an exemplary embodiment of the present invention, including: a Range coupler having one terminal connected to a plurality of first ports that receive a signal and the other terminal connected to a plurality of second ports that output signals; one λ/4 line that is connected between one output terminal and one second port of the Range coupler in series; and one short stub λ/4 line that is connected with the other output terminal and the other second port of the Range coupler in parallel. | 05-08-2014 |
| 20140197901 | Feed Network - A feed network includes three radio frequency (RF) devices constructed in a suspended-substrate stripline configuration that provides a five-port microwave device having a sum port and four feed ports. The three RF devices include at least one coupled-line quadrature hybrid and at least one Marchand balun. Each of the at least one coupled-line quadrature hybrid has only a single transmission line section providing two outputs with approximately equal amplitude power and a phase difference of 90°. Each of the at least one Marchand balun includes two offset-coupled transmission line sections separated by a gap and two outputs on opposite sides of the gap. The two outputs have approximately equal amplitude power and a phase difference of 180°. The three RF devices are electrically arranged relative to the sum port and the four feed ports such that the feed ports have equal amplitude power and a progressive 90° phase shift. | 07-17-2014 |
| 20140203888 | ELECTROMAGNETIC RESONANCE COUPLER - An electromagnetic resonance coupler including: a transmitting resonator provided on a transmission substrate and having an open loop shape having an opening, first wiring provided on the transmission substrate and connected to a first connection point on the transmitting resonator, a receiving resonator provided on the reception substrate, second wiring provided on the reception substrate and connected to a second connection point on the receiving resonator, and third wiring provided on the reception substrate and connected to a third connection point on the receiving resonator. When viewed in a direction perpendicular to a main surface of the transmission substrate, the transmission substrate and the reception substrate are provided facing each other so that the transmitting resonator and the receiving resonator are symmetric about a point and have matching contours. | 07-24-2014 |
| 20140285284 | BROADBAND BUTLER MATRIX DEVICE - A broadband butler matrix device includes a 90° branch-line hybrid coupler having an input terminal provided at one side thereof and configured to receive an input signal through the input terminal, and distribute and output the received signal such that the distributed signals have a phase difference of 90°. Further, the broadband butler matrix device includes a 45° broadband phase shifter configured to change the phases of the signals outputted through the 90° branch-line hybrid coupler, using an open and short stub having an electrical length of 45°. | 09-25-2014 |
| 20150035616 | COUPLING STRUCTURE FOR CROSSING TRANSMISSION LINES - A coupling structure for crossing three transmission lines millimeter-wave or centimeter-wave signals a signal conductor layer of a circuit substrate, the coupling structure comprising three planar cross-couplers, and from each of the three cross-couplers two input/output points of the cross-coupler being connected clockwise in succession in the plane of the cross-coupler, to respectively one input/output point of a respective other of the three cross-couplers. | 02-05-2015 |
| 20150054595 | THREE DIMENSIONAL BRANCHLINE COUPLER USING THROUGH SILICON VIAS AND DESIGN STRUCTURES - A three dimensional (3D) branchline coupler using through silicon vias (TSV), methods of manufacturing the same and design structures are disclosed. The method includes forming a first waveguide structure in a first dielectric material. The method further includes forming a second waveguide structure in a second dielectric material. The method further includes forming through silicon vias through a substrate formed between the first dielectric material and the second dielectric material, which connects the first waveguide structure to the second waveguide structure. | 02-26-2015 |
| 20150303548 | RECONFIGURABLE BRANCH LINE COUPLER - A reconfigurable branch line coupler and methods of designing and reconfiguring the branch line coupler are disclosed. The reconfigurable branch line coupler includes a plurality of transmission lines, each of which comprises a phase shifter. The reconfigurable branch line coupler further includes an input port, which is split into two quadrature signals providing a second and third port between adjacent of the plurality of transmission lines, with a fourth port isolated from the input port at a center frequency. | 10-22-2015 |
| 20150340752 | RF Waveguide Phase-Directed Power Combiners - High power RF phase-directed power combiners include magic H hybrid and/or superhybrid circuits oriented in orthogonal H-planes and connected using E-plane bends and/or twists to produce compact 3D waveguide circuits, including 8×8 and 16×16 combiners. Using phase control at the input ports, RF power can be directed to a single output port, enabling fast switching between output ports for applications such as multi-angle radiation therapy. | 11-26-2015 |
| 20160020502 | WIDEBAND AND LOW-LOSS QUADRATURE PHASE QUAD-FEEDING NETWORK FOR HIGH-PERFORMANCE GNSS ANTENNA - A system and method for a wide-band low loss quadrature phase antenna feed system is provided. A 180° phase shifter is configured to generate a 0° and 180° phase output. The phase shifter's outputs are fed into a 90° hybrid coupler to generate 0°, 90°, 180° and 270° outputs for used to feed a quadrature phase antenna. | 01-21-2016 |
| 333118000 | Having lumped parameters or impedances | 11 |
| 20090079513 | COMPOSITE RIGHT/LEFT HANDED (CRLH) BRANCH-LINE COUPLERS - High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices. | 03-26-2009 |
| 20090231058 | BAND-PASS FILTER - Provided is a band-pass filter having a small phase change in a pass band and a steep frequency characteristic. The band-pass filter includes: a four-terminal pair 90-degree hybrid circuit ( | 09-17-2009 |
| 20110018651 | POWER COMBINER AND MICROWAVE INTRODUCTION MECHANISM - A power combiner | 01-27-2011 |
| 20120133455 | Method and System for Generating Quadrature Signals Utilizing an On-Chip Transformer - Aspects of a method and system for generating quadrature signals utilizing an on-chip transformer are provided. In this regard, a pair of phase-quadrature signals may be generated from a single-phase signal via a transformer, one or more variable capacitors, and one or more variable resistors integrated on-chip. The transformer may comprise a plurality of loops fabricated in a plurality of metal layers in the chip. Each of the one or more variable capacitors may comprise a configurable capacitor bank and each of the one or more variable resistors may comprise a configurable resistor bank. The one or more capacitor banks may be programmatically configured on-chip, based on a frequency of the single-phase signal. The one or more resistor banks may be programmatically configured on-chip, based on a frequency of said single-phase signal. | 05-31-2012 |
| 20120139661 | COMPACT DUAL-BAND METAMATERIAL-BASED HYBRID RING COUPLER - A compact multi-band hybrid ring (rat-race) coupler utilizing a ring of composite right-handed and left-handed (CRLH) transmission lines (TLs) and multiple ports, provides miniaturization and the ability to operate at arbitrary frequency bands unlike conventional couplers. The hybrid ring is made compact, such as by constraining phase delay contributions |φ | 06-07-2012 |
| 333119000 | Using transformer coil | 6 |
| 20100052812 | MINIATURIZED MULTILAYER HYBRID-PHASE SIGNAL SPLITTER CIRCUIT - A miniaturized multilayer hybrid-phase signal splitter circuit is proposed, which is fully equivalent in function to a conventional rat-race coupler, but with a specialized circuit layout structure that allows its IC implementation to be more miniaturized than the conventional rat-race coupler. The proposed hybrid-phase signal splitter circuit features the use of a multilayer substrate for the layout of six transmission lines in such a manner that the transmission lines in the middle layer are inductively coupled to the transmission lines on the overlying layer as well as the transmission lines on the underlying layer to form a Marchand balun. In IC implementation, the required layout area is only about 10% of the layout area for the conventional rat-race coupler. | 03-04-2010 |
| 20120062334 | METHOD FOR DESIGNING COUPLING-FUNCTION BASED MILLIMETER WAVE ELECTRICAL ELEMENTS - A method for designing a coupling-function based millimeter wave electrical elements. The method comprises computing a length of a first metal line and a second metal line; computing a first number of turns for the first metal line and a second number of turns for the second metal line, wherein the length and number of turns of each of the first metal line and the second metal line are computed to meet radio-frequency (RF) properties of a millimeter wave electrical element to be designed; determining a width value of each of the first metal line and the second metal line; determining a spacing value between the first metal line and the second metal line; winding the first metal line on a first metal layer according to the first number of turns and winding the second metal line on the first metal layer and, in part, on a second metal layer according to the second number of turn, thereby resulting in a spiraled structure; and setting ports for the spiraled structure to form a complete design of the millimeter wave electrical element. | 03-15-2012 |
| 20140077894 | PHASE SHIFTING DEVICE - A phase shifting device is disclosed. The phase shifting device comprises an input operable to receive an input signal to be adjusted; a coupling device coupled with the input and with an output; and at least one lumped equivalent impedance transformer circuit coupled with the coupling device to receive the input signal, the lumped equivalent impedance transformer circuit having liquid crystal variable capacitors operable to adjust the input signal in response to a bias voltage applied thereto and to provide the adjusted input signal to the coupling device as an output signal. Rather than using a microstrip structure, a lumped element equivalent is instead used, which makes it possible to exploit the advantages of a liquid crystal structure but in a more compact form. | 03-20-2014 |
| 20140306779 | METHOD FOR DESIGNING COUPLING-FUNCTION BASED MILLIMETER WAVE ELECTRICAL ELEMENTS - A method for designing a coupling-function based millimeter wave electrical element. The method comprises computing a length of a first metal line and a second metal line; computing a first number of turns for the first metal line and a second number of turns for the second metal line; determining a width value of each of the first metal line and the second metal line; determining a spacing value between the first metal line and the second metal line; winding the first metal line on a first metal layer according to the first number of turns and winding the second metal line on the first metal layer and, in part, on a second metal layer according to the second number of turns, thereby resulting in a spiraled structure; and setting ports for the spiraled structure to form a complete design of the millimeter wave electrical element. | 10-16-2014 |
| 20150372360 | FILTERLESS BROADBAND FRONT-END ISOLATOR - Representative implementations of devices and techniques provide isolation between transmit and receive portions of a broadband transceiver of a wireless communication system. filterless isolation technique is performed via a directional Phase shifting arrangement that includes an isolating hybrid device coupled to a non-reciprocal phase shifting combiner/splitter. | 12-24-2015 |
| 20160380604 | TRANSFORMER BASED DUPLEXER - A tunable transformer based duplexer (TTBD) comprising a first antenna port and a second antenna port. The TTBD further comprises a first winding coupled between a transmitting port and the first antenna port, wherein the first antenna port is configured to receive a first signal; a second winding coupled between the transmitting port and the second antenna port, wherein the second antenna port is configured to receive a second signal. Further, the TTBD comprises a receiving amplifier comprising at least one input and at least one output. The TTBD also comprises a third winding comprising a first terminal and a second terminal. The third winding comprises a first inductance and is coupled to the at least one output of the amplifier circuit. A first coupling is formed between the first winding and the third winding and a second coupling is formed between the second winding and the third winding. The TTBD further comprises a tunable capacitance coupled between the first terminal and the second terminal of the third winding. The tunable capacitance and the first inductance together form a band-pass filter. | 12-29-2016 |
| 333120000 | Having hybrid ring junction | 4 |
| 20090002093 | COMPOSITE RIGHT/LEFT HANDED (CRLH) HYBRID-RING COUPLERS - High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices. | 01-01-2009 |
| 20090289737 | COMPACT DUAL-BAND METAMATERIAL-BASED HYBRID RING COUPLER - A compact multi-band hybrid ring (rat-race) coupler utilizing a ring of composite right-handed and left-handed (CRLH) transmission lines (TLs) and multiple ports, provides miniaturization and the ability to operate at arbitrary frequency bands unlike conventional couplers. The hybrid ring is made compact, such as by constraining phase delay contributions |φ | 11-26-2009 |
| 20140049338 | ELECTROMAGNETIC RESONANCE COUPLER - An electromagnetic resonance coupler including: a transmitting resonator provided on a transmission substrate and having an open loop shape having an opening, first wiring provided on the transmission substrate and connected to a first connection point on the transmitting resonator, a receiving resonator provided on the reception substrate, second wiring provided on the reception substrate and connected to a second connection point on the receiving resonator, and third wiring provided on the reception substrate and connected to a third connection point on the receiving resonator. When viewed in a direction perpendicular to a main surface of the transmission substrate, the transmission substrate and the reception substrate are provided facing each other so that the transmitting resonator and the receiving resonator are symmetric about a point and have matching contours. | 02-20-2014 |
| 20150341011 | RECONFIGURABLE RAT RACE COUPLER - A reconfigurable rat race coupler and methods of designing and reconfiguring the rat race coupler are disclosed. The reconfigurable rat race coupler, includes a plurality of transmission lines. The plurality of transmission lines include: a first transmission line and a second transmission line each of which comprise a phase shifter; and a third transmission line and a fourth transmission line each of which comprise phase shifters. A signal input on port | 11-26-2015 |
| 333121000 | Having hybrid-T (e.g., magic-T) | 6 |
| 20090102577 | COMPACT MAGIC-T USING MICROSTRIP-SLOTLINE TRANSITIONS - The design of a compact low-loss Magic-T is described. The planar Magic-T incorporates a compact microstrip-slotline tee junction and small microstrip-slotline transition area to reduce slotline radiation. The Magic-T produces broadband in-phase and out-of-phase power combiner/divider responses, has low in-band insertion loss, and small in-band phase and amplitude imbalance. | 04-23-2009 |
| 20090237177 | Miniaturized microwave sampler - A miniaturized microwave sampler has a first substrate and a second substrate mounted together on a mounting surface, a ground layer formed on the mounting surface, a slot-line formed on the ground layer. A first microstrip line is formed on a top surface of the first substrate and has a first end as a local pulse signal input port. A T-shaped second microstrip line is formed on a bottom surface of the second substrate and achieves an electromagnetic coupling with the first microstrip line through the slot-line. The second microstrip line has a longitudinal segment and a latitudinal segment both being perpendicularly connected together. The longitudinal segment has one end as a radio frequency signal input port. The latitudinal segment further extends to form two output ports. | 09-24-2009 |
| 333122000 | Using waveguide | 4 |
| 20090102578 | BROADBAND PLANAR MAGIC-T WITH LOW PHASE AND AMPLITUDE IMBALANCE - A planar Magic-T that incorporates complementary microstrip-slotline tee junction and microstrip-slotline transition area to produce a compact broadband out-of-phase combining structure with minimum loss due to slotline radiation. The Magic-T structure layout is symmetric which causes the structure to be less dependent on the transmission line phase variation. The Magic-T produces broadband in-phase and out-of-phase power combiner/divider responses, has low in-band insertion loss, and small in-band phase and amplitude imbalance. A multi-section impedance transformation network is used to increase the operating bandwidth and minimize the parasitic coupling around the microstrip-slotline tee junction. As a result, the improved magic-T has greater bandwidth and lower phase imbalance at the sum and difference ports than the earlier magic-T designs. | 04-23-2009 |
| 20130314172 | Broadband Magic Tee - Embodiments of the invention provide a hybrid tee waveguide structure including a first collinear arm having a first waveguide, a second collinear arm having a second waveguide, an H-arm having a third waveguide and including at least one window; and an E-arm having a fourth waveguide and including at least one window, the E-arm oriented perpendicular to the H-arm. The first, second, third and fourth waveguides join at a common junction. The at least one window of the H-arm and the at least one window of the E-arm are proximate the common junction. The at least one window of the H-arm and the at least one window of the E-arm change an impedance of the common junction to reduce reflections in the H-arm and E-arm. The hybrid tee waveguide structure further includes an impedance matching element positioned in the common junction. | 11-28-2013 |
| 20150372369 | POWER DIVISION AND RECOMBINATION NETWORK WITH INTERNAL SIGNAL ADJUSTMENT - A power division and recombination network with internal signal adjustment (“PDRN”) is described. The PDRN may include a means for dividing an input power signal having a first amplitude value into eight intermediate power signals, where each intermediate power signal has an intermediate amplitude value equal to approximately one-eighth the first amplitude value. The PDRN may also include a means for processing the intermediate power signals and a means for combining the intermediate power signal into a single output power signal. | 12-24-2015 |
| 20150372370 | ENHANCED HYBRID-TEE COUPLER - An enhanced hybrid-tee coupler (“EHT-coupler”), the EHT-coupler is described. The EHT-coupler includes a first waveguide, second waveguide, third waveguide, and fourth waveguide. The first waveguide defines a first port and the second waveguide defines a second port. Similarly, the third waveguide defines a fourth port and the fourth waveguide defines a fourth port. The first, second, third, and fourth waveguides meet in a single common junction and the first waveguide and second waveguide are collinear. The third waveguide forms an E-plane junction with both the first waveguide and the second waveguide and the fourth waveguide forms an H-plane junction with both the first waveguide and the second waveguide. The EHT-coupler also includes a first impedance matching element positioned in the common junction where the first impedance matching element includes a base and a tip. | 12-24-2015 |
