| Entries |
| Document | Title | Date |
|---|
| 20080246555 | DIFFERENTIAL ELECTRICAL CONNECTOR WITH SKEW CONTROL - An electrical interconnection system with high speed, differential electrical connectors. The connector is assembled from wafers each containing a column of conductive elements, some of which form differential pairs. A housing for the wafer is formed with regions of higher and lower dielectric constant material. The regions of lower dielectric constant material are selectively positioned adjacent longer signal conductors of the differential pairs. The material may be preferentially placed along curved segments of the differential pair to reduce crosstalk in the connector while reducing skew. | 10-09-2008 |
| 20090146759 | CIRCUIT TOPOLOGY FOR MULTIPLE LOADS - A circuit topology for multiple loads includes a driving terminal, a first node coupled to the driving terminal via a main transmission line, a second node coupled to the first node via a first branch transmission line, a first receiving terminal coupled to the first node via a second branch transmission line, a third node coupled to the second node via a third branch transmission line, and a second receiving terminal coupled to the second node via a fourth branch transmission line. The second branch transmission line is longer than the first transmission line, and a first resistor is connected in the second branch transmission line. The third branch transmission line is longer than the fourth branch transmission line, and a second resistor is connected in the third branch transmission line. | 06-11-2009 |
| 20090219109 | MICROWAVE COMBINER/SPLITTER - A power amplifier (power amplifier) having multiple solid state sub-amplifiers connected in parallel between the power amplifier input and the power amplifier output are described. The signal input to the power amplifier is provided to an RF splitter connected between the power amplifier input connector and the input of each of the sub-amplifiers. The RF splitter splits the input power from the signal input and provides the power to the sub-amplifier inputs through input electrical paths. The input electrical paths from the power amplifier input to the sub-amplifiers are substantially physically identical. Each of the sub-amplifiers drive an input of an RF combiner connected between the outputs of the sub-amplifiers and the output of the power amplifier. The RF combiner combines the output power from each of the sub-amplifiers through output electrical paths, and provides the combined power to the power amplifier output. The output electrical paths from the sub-amplifiers to the power amplifier output are substantially physically identical. | 09-03-2009 |
| 20090251233 | Ortho-Mode Transducer for Coaxial Waveguide - There is disclosed an ortho-mode transducer. An annular common waveguide may be defined by an outside surface of an inner conductor and an inside surface of an outer conductor, the outside surface and the inside surface concentric about a waveguide axis. A first port may couple a first TE | 10-08-2009 |
| 20100026416 | POWER DIVIDER AND POWER COMBINER USING DUAL BAND-COMPOSITE RIGHT/LEFT HANDED TRANSMISSION LINE - The present invention relates to a power divider and a power combiner employing dual band-Composite Right/Left-Handed (CRLH) transmission lines. A power divider including an input terminal and two output terminals according to the present invention includes two transmission lines each having two terminals connected to the input terminal and the output terminals, respectively, and two short-stubs having one terminals connected to the output terminals, respectively, and the other terminals connected to grounds. The transmission line may employ a first dual band-CRLH transmission line having a double value of a termination impedance, which is substantially connected to the output terminal, as a characteristic impedance, and the short-stub may employ a second dual band-CRLH transmission line, which has substantially the same value as that of the termination impedance as a characteristic impedance. The first dual band-CRLH transmission line and the second dual band-CRLH transmission line generate phase delay of 90 degrees in a high frequency band and phase delay of −90 degrees in a low frequency band with respect to an input signal. | 02-04-2010 |
| 20100079219 | PLANAR STRUCTURE MICROWAVE SIGNAL MULTI-DISTRIBUTOR - In a conventional Bagley polygon power divider of a planar configuration, a length of transmission lines from an input port to output ports adjacent thereto on both sides is determined to be a quarter wavelength and a geometry thereof is an odd regular polygon with each side being a length equal to half of a wavelength at a designed frequency, which is large in size. Since the output ports are located at vertices of the regular polygon, inconvenience can be caused, e.g., in arrangement of the output ports. | 04-01-2010 |
| 20100207702 | OMT Type Broadband Multiband Transmission-Reception Coupler-Separator for RF Frequency Telecommunications Antennas - The present invention relates to a multiband transmit-receive coupler-separator with a very wide band of the OMT (“OrthoMode Transducer”) type for microwave-frequency telecommunications antennae. This coupler comprises a port for propagating all of the frequencies, a body and a port for propagating high-frequency bands, these three portions being coaxial, and wide-band coupling slots for propagating the low-frequency bands made in the body and each associated with a waveguide, and it is characterized in that its body joining the two ports has a shape of revolution the profile of which changes according to a multipolynomial law, constantly decreasing from the port with the largest cross section to the port with the smallest cross section. This coupler can operate in order to couple and separate very wide bandwidths (the overall use of this coupler-separator being more than one octave), and two or four wide-band coupling slots are necessary for the propagation of linear and circular polarizations after recombination. | 08-19-2010 |
| 20110001577 | SEQUENTIAL ROTATED FEEDING CIRCUIT - A sequential rotated feeding circuit for sequential rotated feeding of a signal with a wavelength λ | 01-06-2011 |
| 20110018652 | Multimedia network splitter - This invention relates to a multimedia network splitter in which a plurality of connection terminals are provided at the outer edge of the housing and a circuit board is provided in the interior of the housing. Corresponding to the connection terminals on the housing, a plurality of radially spaced matching circuits are provided on the circuit board. Each matching circuit is composed of an attenuation circuit in cooperation with a microstrip. Each matching circuit is properly matched on the circuit board. With this structure, after the connection terminals are connected with a plurality of televisions or a variety of digital multimedia equipments by coaxial cables, better flatness of frequency bandwidth and wider extended bandwidth can be obtained during transmission of various signals in upload or download condition such that the signals can be evenly distributed among the networks linked between the terminals in use. Furthermore, the insertion loss, i.e., the attenuation value can be adjusted according to demand, and better return loss feature is obtained so as to reach more stable signal distribution and anti-interference characteristics. Therefore, the convenience in its total availability can be intensified. | 01-27-2011 |
| 20110102100 | METHOD FOR PSEUDO-DIFFERENTIAL TRANSMISSION USING MODAL ELECTRICAL VARIABLES - The invention relates to a method and a device for pseudo-differential transmission in interconnections used for sending a plurality of electrical signals. | 05-05-2011 |
| 20110121913 | SLOW WAVE TRANSMISSION LINE - There is provided a low loss slow wave transmission line that can be miniaturized. A slow wave transmission line of the present invention has a configuration which includes a repeated arrangement of a low impedance line and a high impedance line and in which the high impedance line is longer than the low impedance line in terms of a line length. | 05-26-2011 |
| 20110121914 | METHOD FOR PSEUDO-DIFFERENTIAL TRANSMISSION USING NATURAL ELECTRICAL VARIABLES - The invention relates to a method and a device for pseudo-differential transmission in interconnections used for sending a plurality of electrical signals. | 05-26-2011 |
| 20120025928 | COMPACT N-WAY COAXIAL-TO-WAVEGUIDE POWER COMBINER/DIVIDER - To transport electromagnetic energy at high power levels, a coaxial-to-waveguide power combiner/divider comprises a length of single-conductor closed waveguide terminated at one end by a conductive end plate. A plurality N of holes is formed in the end plate. A conductive matching plate is positioned within the waveguide opposite and spaced apart from the conductive end plate and spaced apart from the inner walls of the waveguide. A plurality of coaxial input/output ports each comprise an outer conductor that is electrically and mechanically terminated at the end plate about one hole and an inner conductor that extends through the associated hole into the waveguide and is electrically and mechanically terminated at the underside of the matching plate. The location and geometry of the matching plate and physical arrangement of the N ports are chosen so that the sum of the direct reflection and the N−1 coupled reflection contributions are small. | 02-02-2012 |
| 20120086519 | IMPEDANCE-MATCHING CIRCUITS FOR MULTI-OUTPUT POWER SUPPLIES DRIVING CO2 GAS-DISCHARGE LASERS - Electrical apparatus for connecting a radio frequency power-supply having two outputs to a load includes two radio frequency transmission-lines, each one connected to a corresponding power-supply output. A transformer arrangement connects the two transmission-lines to the load. Each transmission-line includes a series-connected pair of twelfth-wave transmission-line sections. The series-connection between the twelfth wave transmission-line sections in one transmission line is connected to the series-connection between the twelfth-wave transmission-line sections in the other by a device having an adjustable impedance. | 04-12-2012 |
| 20120274414 | ISOLATED ZERO DEGREE REACTIVE RADIO FREQUENCY HIGH POWER COMBINER - An exemplary communication device includes a combiner having a first transmission line configured to be coupled with a first communication component. A second transmission line is configured to be coupled with a second communication component. A third transmission line is coupled with the first and second transmission lines. An isolation module is coupled with the first and second transmission lines. The isolation module has a resistance, a capacitance and an inductance configured to isolate the first communication component from the second communication component if one of the components is inoperative. The isolation module components are also configured to provide RF matching for the first and second transmission lines if one of the components is inoperative. | 11-01-2012 |
| 20120293274 | MULTIPLE-WAY RING CAVITY POWER COMBINER AND DIVIDER - Multiple-way ring cavity power combiners and power dividers are disclosed. In one aspect, the disclosed ring cavity power combiners and power dividers can support a large number of devices by providing a large number of power-combining or power-dividing ports. In another aspect, the disclosed embodiments describe implementations employing a ring cavity that result in demonstrated performance characteristics suitable for UWB applications. Advantages provided include suppressing higher order modes and low losses among other advantages. | 11-22-2012 |
| 20130093533 | M-WAY COUPLER - An M-way coupler having a first port, M second ports, M transmission line sections, M isolation resistors and a phase shifting network is disclosed, where M is an integer number greater than 1. The M transmission line sections couple the first port to the M second ports, respectively. Each of the M isolation resistors has a first terminal and a second terminal. The first terminals of the M isolation resistors are coupled to the M second ports, respectively. The phase shifting network has M I/O terminals coupled to the second terminals of the M isolation resistors, respectively. The phase shifting network is arranged to provide a phase shift within a predetermined tolerance margin between arbitrary two I/O terminals of the M I/O terminals of the phase shifting network. | 04-18-2013 |
| 20130093534 | Doherty Power Amplifier Network - The present invention is directed to a network that includes an output matching network coupled to an amplifier. The output matching network is configured to transform the at least one amplifier transistor output impedance to an output matching network impedance. A combiner network is coupled to the output matching network. The combiner network includes a first quarter wavelength transmission line coupled between the in-phase signal path and a combiner node. The combiner network further includes a bandwidth enhancement element coupled to the quadrature signal path at the combiner node and an impedance transformation element coupled between the combiner node and a load. The impedance transformation element is configured to substantially transform a combined output matching network impedance at the combiner node to the load impedance. | 04-18-2013 |
| 20130127564 | RECONFIGURABLE WILKINSON POWER DIVIDER AND DESIGN STRUCTURE THEREOF - A reconfigurable Wilkinson power divider, methods of manufacture and design structures are provided. The structure includes a first port, and a first arm and a second arm connected to the first port. The first arm and the second arm each include one or more tunable t-line circuits. The structure also includes a second port and a third port connected to the first port via the first arm and second arm, respectively. | 05-23-2013 |
| 20140035697 | COMBINER - A broadband building block portion is provided, which may be used to construct N-way multi-port combiners. The building block portion comprises a first feeding probe that receives a first input signal, a second feeding probe that receives a second input signal, a combining probe that combines the first and second input signals to output a combined signal, and a transmission line coupled to the first and second feeding probes. | 02-06-2014 |
| 20140049339 | PLANAR TRANSMISSION-LINE INTERCONNECTION AND TRANSITION STRUCTURES - A combiner/divider circuit may include a plurality of planar transmission lines that each may have a planar signal conductor and at least a planar signal-return conductor. Ends of different ones of the signal conductors of the plurality of transmission lines may interconnect with the signal conductor of a first transmission line may be connected to the signal conductors of second and third transmission lines. Signal-return conductors of the first, fourth, and fifth transmission lines may be connected along their lengths. Vias may connect signal-return conductors of the second and third transmission lines with respective signal conductors of the fourth and fifth transmission lines. The positions of the fourth and fifth striplines relative to the first strip line may reverse in a transition region spaced from the connection region. | 02-20-2014 |
| 20140132364 | COMPACT POWER DIVIDER/COMBINER WITH FLEXIBLE OUTPUT SPACING - A compact power divider/combiner with flexible port spacing is disclosed. In an exemplary embodiment, an apparatus includes a three port circuit having first, second, and third ports, and a matching circuit configured to couple the second and third ports to ground. The matching circuit includes a first transmission line connected between a first port and a second port, a second transmission line connected between the first port and a third port, a first matching circuit connected between the second port and a first node, a second matching circuit connected between the first node and the third port, and a third matching circuit connected between the first node and a ground. | 05-15-2014 |
| 20140145794 | POWER COMBINER - A power combining apparatus includes an output waveguide section having inner and outer coaxial conductors, wherein an outer surface of the inner conductor and an inner surface of the outer conductor each includes a substantially linear taper, a center waveguide section having an input, an output, and a plurality of antenna elements, the output of the center waveguide section being coupled to the output waveguide section, and an output waveguide section coupled to the output of the center waveguide section. A power combining apparatus includes an output waveguide section having a central longitudinal axis, and inner and outer coaxial conductors configured to maintain a substantially constant characteristic impedance along the central longitudinal axis, a center waveguide section having an input, an output, and a plurality of antenna elements, the output of the center waveguide section being coupled to the output waveguide section, and an input waveguide section coupled to the input of the center waveguide section. | 05-29-2014 |
| 20140145795 | POWER COMBINER USING TRI-PLANE ANTENNAS - A power combining apparatus includes a waveguide structure and a plurality of antenna elements arranged in the waveguide structure, wherein each of the antenna elements comprises a center planar antenna layer, two outer planar antenna layers arranged on opposite sides of the center planar antenna layer, a non-conductive layer between the center planar antenna layer and one of the outer planar antenna layers, and another non-conductive layer between the center planar antenna and the other one of the outer planar antenna layers. The power combining apparatus includes a waveguide structure having an input, an output, and a plurality of antenna elements arranged in the waveguide structure, wherein each antenna element is configured to transform an electric field direction of an electromagnetic field by substantially 90 degrees rotation about a longitudinal axis of the waveguide structure, wherein a bandwidth of the antenna is less than, equal to, or greater than a decade of frequency range. | 05-29-2014 |
| 20140152397 | MULTI-LEVEL POWER AMPLIFICATION SYSTEM - In general, in accordance with an exemplary aspect of the present invention, an electrical system configured to use power combining of microwave signals, such as those from monolithic microwave integrated circuits or MMICs is provided. In one exemplary embodiment, the system of the present invention further comprises a low loss interface that the circuits are directly connected to. In another exemplary embodiment, the circuits are connected to a pin which is connected to the low loss interface. In yet another exemplary embodiment of the present invention, a multi-layer power amplifier is provided that comprises two or more chassis and circuits attached to impedance matching interfaces according to the present invention. This multi-layered power amplifier is configured to amplify an energy signal and have a significantly reduced volume compared to existing power combiners. | 06-05-2014 |
| 20140167879 | CIRCUIT TOPOLOGY FOR MULTIPLE LOADS - A circuit topology to reduce ringing and the strength of unwanted signals includes a signal transmitting terminal, a first signal receiving terminal, and a second signal receiving terminal The signal transmitting terminal receives a first DC voltage via a first node and a first resistor. The first node is electrically connected to a second node via a third resistor and an energy consuming element. The energy consuming element weakens the voltage level of noise signals on the second signal receiving terminal, therefore, signal reflections from the second signal receiving terminal are reduced, and signal integrity at the first signal receiving terminal is improved. | 06-19-2014 |
| 20140292441 | POWER COMBINER AND POWER DIVIDER - There is provided a power combiner configured to combine high-frequency powers such that the high-frequency powers respectively input to a plurality of input terminals are output from one output terminal via transmission circuits respectively connected to the input terminals. The respective input terminals are connected to one ends of resistances in parallel with the respective transmission circuits and the other ends of the resistances are connected to each other, so that the input terminals are connected to each other through the resistances connected to the respective input terminals. Each of the transmission circuits is comprised of a circuit in which a first inductor, a transmission section having a constant characteristic impedance and a second inductor are connected to each other in series. | 10-02-2014 |
| 20140354369 | TRANSMISSION LINE AND TRANSMISSION METHOD - The present technology relates to a transmission line and transmission method that allow multi-mode transmission to be easily performed using electrical signals as a transmission target. A multi-mode waveguide is connected to a metal wire configured to transmit an electrical signal via a matching structure configured to perform impedance matching between the multi-mode waveguide and the metal wire. For example, the electrical signal can be a signal of a millimeter wave band. For example, the multi-mode waveguide, the metal wire, and the matching structure can be arranged to be aligned on a plane. The present technology can be applied to, for example, transmission for electrical signals such as millimeter waves. | 12-04-2014 |
| 20140368294 | POWER DIVIDER - A power divider for a Wilkinson power divider includes a dielectric layer arranged at a lower part of the Wilkinson power divider and composed of at least one composite material: and a first composite right/left handed (CRLH) transmission line connected in series between the transformer line and the first output line. Further, the power divider for the Wilkinson power divider includes a second CRLH transmission line connected in series between the transformer line and the second output line. | 12-18-2014 |
| 20140375396 | WAVEGUIDE TUBE WITH ADJUSTABILITY BETWEEN OUTPUTS - A T-shaped waveguide tube with adjustability as between two outputs includes a T-shaped body, a T-shaped cover detachably mounted on the body, and a baffle. A number of pair of pillars can be mounted on a bottom board of the body. An energy entrance, a first energy output, and a second energy output are formed by the body, the cover, and the baffle. By installing the pillars in different configurations, wave energy from the energy entrance can be distributed equally or otherwise through the two outputs of the waveguide tube. | 12-25-2014 |
| 20150054596 | METHODS FOR RF CONNECTIONS IN CONCENTRIC FEEDS - A concentric feed is provided. The concentric feed includes an outer-conductive tube electrically connected at a base of an inner-conductive tube to an outer-conductive tube by a process comprising the steps of: configuring the outer-conductive tube; configuring the inner-conductive tube; and positioning the outer-conductive tube to contact the inner-conductive tube at the base. The outer-conductive tube is configured to include: a side-port; a first-edge surface; a first-interior surface sharing an edge with and perpendicular to the first-edge surface; a second-edge surface; and a second-interior surface sharing an edge with and perpendicular to the second-edge surface. The inner-conductive tube is configured to include: the base at a base-end of the inner-conductive tube, the base including a first lip and a second lip protruding orthogonal to a first surface and a second surface, respectively, and a central-port centered on the central axis and parallel to the central axis; and a main-body. | 02-26-2015 |
| 20150102871 | Multiple Way Waveguide Power Module - Example power modules are described. In one implementation, a power module includes four RF signal ports that are electromagnetically coupled to a fifth RF signal port, which is substantially perpendicular to a geometric plane containing the four RF signal ports. Each of the four RF signal ports includes a waveguide and a reactive element extending into the waveguide. A termination port is electromagnetically coupled to the four RF signal ports and is substantially perpendicular to a geometric plane containing the four RF signal ports. The termination port is substantially coaxial with the fifth RF signal port. | 04-16-2015 |
| 20150109070 | Dielectric Waveguide Signal Divider - A dielectric waveguide (DWG) has a longitudinal core member with a first dielectric constant value surrounded by a cladding with a cladding dielectric constant value that is lower than the first dielectric constant value. A first port of a signal divider is connected to receive a signal from the DWG. A second port and a third port are each configured to output a portion of the signal received on the first port, wherein the first and second port are approximately in line and the third port is at an angle to a line formed by the first port and the second port. The first port and second port have a core member with the first dielectric constant value, and the third port has a core member with a second dielectric constant value that is higher than the first dielectric constant value. | 04-23-2015 |
| 20150295555 | ACTIVE CONNECTOR HAVING LOOP THROUGH FUNCTION - An object of the present invention is to realize a loop through circuit, in an active connector, securely having a preferable mismatching attenuation characteristic and having a preferable signal transmission characteristic, with respect to an input port, an output port, and an internal port, without providing a special circuit outside the connector. A connector base part has the input port inputting an external signal, the output port outputting a loop through signal, and the internal port outputting a signal into a device. First and second matching circuits, an equalizer circuit, a dividing circuit, and a driving circuit are stored in the connector base part. The matching circuit is supplied with an external signal input from the input port. The dividing circuit divides a signal to be input to generate first and second divided signals, and outputs them to the internal port and the output port. The equalizer circuit compensates for a frequency characteristic and/or loss of a signal to be input. The driving circuit is provided between the dividing circuit and the matching circuit, and drives a transmission line to be coupled to the output port. | 10-15-2015 |
| 20150340753 | PRINTED CIRCUIT BOARD AND PRINTED CIRCUIT BOARD FOR CAMERA MODULE - A printed circuit board includes a signal transmitting part and a ground part disposed having an insulating layer therebetween. The ground part includes an impedance adjusting part. | 11-26-2015 |
| 20160112027 | RF/MICROWAVE POWER DIVIDER WITH PORT TO PORT ISOLATION - A power divider may coherently divide an RF or microwave input signal into multiple instances of that signal. The power divider may include: an input port that receives the input signal; multiple output ports; and passive signal splitting circuitry that causes a different instance of the input signal to be delivered to each of the output ports all substantially in phase with one another and with substantially equal amplitude, but isolates any signal that is reflected back to one of the output ports from a device to which the output port is connected from any of the other output ports. | 04-21-2016 |
| 20160141741 | FEED LINE - A feed line in the form of a trip late line that runs from a waveguide/triplate-line converter coupled to a radio to a plurality of patch antennas in a cluster pattern. The width and length of a section of said feed line between the waveguide/triplate-line converter and the branch point nearest thereto are set such that the impedance of said section directly matches the parallel combination of the impedances of branches beyond said branch point and the loss in said section is kept to or below a predetermined upper limit. | 05-19-2016 |
| 20160141742 | N-WAY COAXIAL WAVEGUIDE POWER DIVIDER/COMBINER - A low loss and compact power divider/combiner is provided for high power efficiency. The power divider/combiner can be an N-way coaxial-waveguide cavity power divider/combiner with good characteristics of low loss and compact size. The power divider/combiner can be comprised of a coaxial common port, a radial-waveguide cavity, and N-way probe outputs. In various embodiments, the power divider/combiner can have a plurality of probe outputs that are equally spaced radially around an axis on which the coaxial common port is located. The radial-waveguide cavity and N-way probe outputs can be fabricated on a substrate board using printed circuit technology. In addition, the power divider/combiner can have reversed probe outputs which provide for 180 degree out of phase outputs between the probe outputs. | 05-19-2016 |
| 20160181683 | Device For Radio-Frequency Power Coupling And Method Of Using The Device | 06-23-2016 |
| 20160190672 | Method and Assembly for Radio-Frequency (RF) Power Coupling - A method and an assembly for radio-frequency (RF) power coupling in a rack includes at least one box shaped power combiner and/or divider, connectors for inputting and outputting RF-power, conductors arranged inside the at least one box shaped power combiner and/or divider, electrically connecting the connectors with at least one center conductor, and at least one outside conductor formed as a box shaped casing. | 06-30-2016 |
| 20180026601 | HIGH ISOLATION POWER COMBINER/SPLITTER AND COUPLER | 01-25-2018 |
