Abstract: A low-cost, small-size Wilkinson-type combiner that suppresses the risk of damaging an isolation resistor due to combination loss is provided. The combiner comprises first and second input terminals to which RF signals are input; an output terminal; a wiring line that combines the RF signals input to the first and second input terminals, and outputs the combined signal to the output terminal; an isolation unit provided between the first and second input terminals and formed by a first isolation resistor, a transformer, and a second isolation resistor connected in series; a detection circuit connected to a secondary coil of the transformer and configured to detect a current flowing in the secondary coil; and a determination circuit that outputs a control signal to block input of RF signals to the first and second input terminals if the current flowing in the isolation unit and detected by the detection circuit is higher than or equal to a prescribed value.

Abstract: A power dividing and combining device comprising a resonance body, a plurality of circuit boards, an upper cover and a lower cover is provided. The resonance body comprises a solid conductive body, a plurality of first dividing elements, a plurality of second dividing elements, a signal-receiving end and a signal-transmitting end. The solid conductive body has a first surface, a second surface opposite to the first surface, and a plurality of side surfaces connecting the first surface and the second surface. The first dividing elements are disposed on the first surface and separate a plurality of first resonance channels on the first surface. The first resonance channels intersect at a first common region on the first surface. The second dividing elements are disposed on the second surface and separate a plurality of second resonance channels on the second surface. The second resonance channels intersect at a second common region on the second surface.

Abstract: An apparatus comprising a first circuit and a circuit. The first circuit may be configured to receive an input signal, split the input signal into component signals and present the component signals to a plurality of amplifiers. The second circuit may be configured to receive amplified component signals from the amplifiers and combine the amplified component signals into an output signal. The circuits may each comprise an outer conductor, an inner conductor, a cavity and a plurality of blades. Each of the blades may be arranged evenly spaced along a surface within the cavity and extend along a length of the surface with a shape. The shape of the blades may have a probe and the shape may gradually meet the surface and may be configured to provide a low-loss transition for propagation of a microwave signal. The output signal may be an amplified version of said input signal.

Abstract: A MoCA splitter device may include an input port, a first output port and a second output port, a first transmission line configured to connect the input port to the first output port, a second transmission line configured to connect the input port to the first output port, a first isolation element configured to connect the first transmission line to the second transmission line, a second isolation element configured to connecting the first transmission line to the second transmission line. The first isolation element and the second isolation element are configured to provide an isolation level between the first output port and the second output port that is less than a predetermined isolation level of about less than 16 dB in a MoCA frequency band.

Abstract: An electronic power divider for radio frequency signals, and an electronic system containing such electronic power divider, includes one or more inputs designed to be fed by an electromagnetic radio frequency signal having a predetermined wavelength; at least two outputs for the radio frequency signal, each of which is connected to the same input; electric paths adapted to connect each output to the corresponding input, and a system of selective variation of the electric impedance associated with each of the electric paths during the passage of the signal. The impedance variation system is adapted to vary the impedance associated with the paths discreetly between a lower and an upper value, and to simultaneously maintain the value of the impedance associated with two or more paths at least at the lower value.

Abstract: A transmission-line network includes first, second, third, and fourth transmission lines. Signal conductors of the first and third transmission lines are connected in series and the signal conductors of the second and fourth transmission lines are connected in series. Signal-return conductors of the first and fourth transmission lines are connected in series. The signal-return conductors of the second and third transmission lines are connected in series. A first resistor may be connected between a junction between the signal conductors of the first and third transmission lines and a junction between the signal conductors of the second and fourth transmission lines. A second resistor may be connected between a junction between the signal-return conductors of the first and fourth transmission lines and a junction between the signal-return conductors of the second and third transmission lines.

Abstract: A coaxial tap in a hybrid fiber coaxial cable distribution system serves subscribers with an RF signal and optionally an equipment supply voltage while passing the RF signal to devices downstream of the tap.

Abstract: A power combiner circuit comprises a network topology for broadband RF and microwave systems that includes coupling elements, internodal matching sections, and an output matching section. The network topology serves as a combining mechanism for power from multiple power amplifiers. The network topology is designed so that characteristic impedances of transmissions lines serving as the coupling elements, internodal matching sections, and an output matching section produce a load impedance at an output port that is matched to the impedances seen by each power amplifier providing power to the power combiner circuit. Such a network topology is scalable to an unlimited number of power amplifiers, and enables a desired broadband frequency response for power amplification, while realizing a very low level of power output loss between input and output ports.

Abstract: Various aspects directed towards an integrated transverse electromagnetic (TEM) transmission line structure for probe calibration are disclosed. In one example, the integrated TEM transmission line structure includes a printed circuit board (PCB) and an air-dielectric coplanar waveguide (CPW). For this example, the air-dielectric CPW includes an air trace in a cutout slot of the PCB. In another example, a method is disclosed, which includes forming an air-dielectric CPW on a PCB in which the air-dielectric CPW includes an air trace in a cutout slot of the PCB. In a further example, an integrated TEM transmission line structure includes an air-dielectric CPW with an air trace. For this example, a first connector is electrically coupled to a first end of the air-dielectric CPW, and a second connector is electrically coupled to a second end of the air-dielectric CPW.

Abstract: A coaxial tap in a hybrid fiber coaxial cable distribution system serves subscribers with an RF signal.

Abstract: A microwave amplifier having a load network which provides more efficient amplification of a low power microwave frequency signal. The amplifier comprises a transistor and a load network coupled to the transistor output to shape a waveform of an amplified microwave signal at the transistor current source plane. The load network comprises: a fundamental matching network to provide impedance matching at a fundamental frequency; a half-wave transmission line for a second harmonic frequency disposed between the transistor output and the fundamental matching network; a quarter-wave stub and a five-quarter-wave stub for a third harmonic frequency arranged on the half-wave transmission line to provide an open circuit condition at the third harmonic; and a quarter-wave stub for the second harmonic frequency and a quarter-wave stub for the fundamental frequency, arranged on the half-wave transmission line to provide a short circuit condition at the second harmonic frequency.

Abstract: Disclosed is an antenna phase shifter that comprises an outer conductive trace, an inner conductive trace, a wiper arm having a pivot point, and a capacitive coupler that capacitively couples an input port to the wiper arm conductive trace and capacitively couples the input port to a phase reference port. The capacitive coupler provided DC blocking between the input port and the phase reference port, and the input port may be coupled to a Bias-T such that the DC component present at the input port may be coupled to the Bias-T to drive the phase shifter wiper arm motor. In addition, the capacitive coupler provided constant capacitance while the wiper arm rotates.

Abstract: A MoCA splitter device may include an input port, a first output port and a second output port, a first transmission line configured to connect the input port to the first output port, a second transmission line configured to connect the input port to the first output port, a first isolation element configured to connect the first transmission line to the second transmission line, a second isolation element configured to connecting the first transmission line to the second transmission line. The first isolation element and the second isolation element are configured to provide an isolation level between the first output port and the second output port that is less than a predetermined isolation level of about less than 16 dB in a MoCA frequency band.

Abstract: A transmitter for an aircraft is disclosed. The transmitter comprises a first channel configured to transmit first radio frequency (RF) signals in a first direction and a second channel configured to transmit second RF signals in a second direction. A branchline coupler is communicatively coupled to the first channel and the second channel. The branchline coupler comprises one or more quarter wave transformers and a set of PIN diode switches configured to have a high impedance responsive to the transmitter being in an amplitude-based mode and a low impedance responsive to the transmitter being in a phase-based mode.

Abstract: A filtering power divider includes a first partial transmission line having a first electrical length, a second partial transmission line having a second electrical length, and a third partial transmission line having the second electrical length. The first, second, and third partial transmission lines connect to form a T-junction, and a sum of the first and second electrical lengths is ninety degrees. Thus, the first and second partial transmission lines cooperate to act as a quarter-wave transmission line. Similarly, the first and third partial transmission lines cooperate to act as a quarter-wave transmission line. Additional transmission lines may be connected to the first, second, and third partial transmission lines to implement a filter between an input port and each of two output ports.

Abstract: The mode-whisperer waveguide device includes a main waveguide, a junction waveguide and a pair of recombination arm waveguides. The main waveguide features a spline taper extending along an axis of the main waveguide. The spline taper has been integrated with the normal linear aperture taper. The junction waveguide is attached to the main waveguide. The recombination arm waveguides are attached to the junction waveguide. A first port is coupled to the pair of recombination arm waveguides via a pair of recombination arm transformer steps. The main waveguide, the junction waveguide, the pair of recombination arm waveguides and the pair of recombination arm transformer steps are manufacturable as a monolithic waveguide device that is configured to achieve outstanding higher-order mode suppression due to the gradual dual spline taper which has been integrated with the normal linear taper to the aperture port.

Abstract: An antenna feeding network for a multi-radiator antenna, the antenna feeding network comprising at least two coaxial lines. Each coaxial line comprises a central inner conductor and an elongated outer conductor surrounding the central inner conductor. At least a first inner conductor and a second inner conductor of the at least two coaxial lines are indirectly interconnected.

Abstract: Spatial power-combining devices and, more particularly, spatial power-combining devices with improved isolation are disclosed. Spatial power-combining devices are disclosed that include a thin film resistor that is configured to provide improved signal isolation. The thin film resistor may be arranged within one or more amplifier assemblies of the spatial power-combining device to reduce signal leakage between the amplifier assemblies. The thin film resistor may be formed on a carrier substrate or the thin film resistor may supported by a surface of an amplifier assembly without a carrier substrate. Spatial power-combining devices are disclosed that include a radial arrangement of amplifier assemblies, and each amplifier assembly includes an antenna structure and a thin film resistor.

Abstract: A multi-band antenna system includes an array of wide-band radiating elements and a multi-band electrical tilt circuit. The multi-band electrical tilt circuit includes a plurality of combiners, a first RF band variable phase shifter and a second RF band variable phase shifter implemented in a common medium. The common medium may comprise a PCB, a stripline circuit, or the like. Each combiner includes a combined port, a first RF band port, and a second RF band port. The combined ports are coupled to the radiating elements. The first RF band phase shifter has a first plurality of variably phase shifted ports connected to the first RF band ports of the combiners via transmission line, and the second RF band phase shifter has a second plurality of variably phase-shifted ports connected to the second RF band ports of the combiners via transmission line. The phase shifters are independently configurable.

Abstract: According to one embodiment, a high-frequency power combiner has an external conductor and an internal conductor. The external conductor defines an internal space. The internal conductor has an output-side line and a plurality of input-side lines that branch off from the output-side line. The internal conductor is provided in the internal space of the external conductor. The high-frequency power combiner of the embodiment has a structure that can store a liquid in contact with the internal conductor in the internal space.

Abstract: Spatial power-combining devices and antenna assemblies for spatial power-combining devices are disclosed. The disclosure relates to spatial power-combining devices with segmented waveguides and antennas. The spatial power-combining devices may be designed for high efficiency, high or low frequency ranges, ultra-wide bandwidth operation, and high output power. A spatial power-combining device may include a plurality of amplifiers, an output center waveguide including an output inner housing and an output outer housing, and an output coaxial waveguide. The output center waveguide may form a plurality of output center waveguide segments that are discontinuous with each other. Each output center waveguide segment may include a different portion of the output inner housing and the output outer housing. An antenna for a spatial power-combining device may include a plurality of antenna segments, each of which includes a different portion of a signal conductor and a ground conductor of the antenna.

Abstract: A splitter includes a common transmission line, a first transmission line, a second transmission line, a third transmission line, a fourth transmission line, a resistor, and a first reactance circuit. The common transmission line is coupled between a common port and a common node. The first transmission line is coupled between a first port and a first node. The second transmission line is coupled between a second port and a second node. The third transmission line is coupled between the common node and the first node. The fourth transmission line is coupled between the common node and the second node. The resistor is coupled between the first node and the second node. The first reactance circuit is coupled between the first node and the second node. The first reactance circuit includes a first inductor and a first capacitor coupled in parallel, but it does not include any resistor.

Abstract: An apparatus comprising a first power combiner/divider network and a second power combiner/divider network. The first power combiner/divider network splits a first electromagnetic signal into split signals that are connectable to signal processor(s). The second power combiner/divider network combines processed signals into a second electromagnetic signal. The apparatus includes a three-dimensional coaxial microstructure.

Abstract: A power combiner/divider includes a main conductor defining an axis; an input connector having a center conductor, adapted to be coupled to a signal source, electrically coupled to the main conductor and having an axis aligned with the main conductor axis, and having a second conductor electrically coupled to a ground conductor; a plurality of satellite conductors radially exterior of and spaced apart from the main conductor, the satellite conductors defining the general shape of a slotted hollow cylinder having a cylinder axis aligned with the main conductor axis; a plurality of output connectors having center conductors electrically coupled to respective satellite conductors and having respective second conductors electrically coupled to a second ground conductor; and a multiconductor transmission line, including the satellite conductors, defined between the input connector and the output connectors. Methods of manufacturing are also disclosed.

Abstract: A technique relates to a superconducting microwave combiner. A first filter through a last filter connects to a first input through a last input, respectively. The first filter through the last filter each has a first passband through a last passband, respectively, such that the first passband through the last passband are each different. A common output is connected to the first input through the last input via the first filter through the last filter.

Abstract: A power converter includes: a base conductor, an electrically heating member which is provided on the base conductor, a noise reduction capacitor of flat plate-shape in which via an insulator, a plurality of first electrodes and second electrodes are alternately layered, on one surface, the first electrode in an outermost layer is exposed and on another surface, the second electrode in an outermost layer is exposed, a relay conductor which is electrically connected to other members from the electrically heating member via the noise reduction capacitor, and the second electrode in an outermost layer of the noise reduction capacitor is face-joined to a face of the base conductor at a side where the electrically heating member is provided and the first electrode in an outermost layer and the relay conductor are face-joined.

Abstract: A single-ended signal can be converted to a differential signal or reverse. A printed circuit board component can comprise a bottom metal layer and a top metal layer, wherein the bottom metal layer is connected to the top metal layer by an array of metal posts, and wherein the array of metal posts is arranged to form a substrate integrated waveguide network configured to transmit a set of electromagnetic waves corresponding to a single-ended signal represented according to a bandwidth. Furthermore, in an aspect, the device can comprise a coaxial to waveguide adaptor component comprising a coaxial cable port portion and a waveguide port portion, wherein the waveguide port portion guides the set of electromagnetic waves to the substrate integrated waveguide network.

Abstract: A power combiner/divider includes a main conductor; a ground conductor radially exterior of the main conductor; an input connector having a center conductor electrically coupled to the main conductor and having a second conductor electrically coupled to the ground conductor; a conductive cylinder including an inner cylindrical surface radially exterior of and spaced apart from the main conductor, including an outer cylindrical surface; a second ground conductor radially exterior of the outer cylindrical surface of the conductive cylinder, a gap being defined between the second ground conductor and the outer surface of the conductive cylinder; a plurality of output connectors, the output connectors having center conductors electrically coupled to the conductive cylinder and having respective second conductors electrically coupled to the second ground conductor; and means for receiving and retaining a gas inside the divider/combiner. Methods of manufacturing are also disclosed.

Abstract: A power combiner/divider includes a main conductor; a ground conductor radially exterior of the main conductor; an input connector having a center conductor electrically coupled to the main conductor and having a second conductor electrically coupled to the ground conductor; a conductive cylinder including an inner cylindrical surface radially exterior of and spaced apart from the main conductor, including an outer cylindrical surface; a second ground conductor radially exterior of the outer cylindrical surface of the conductive cylinder, a gap being defined between the second ground conductor and the outer surface of the conductive cylinder; a plurality of output connectors, the output connectors having center conductors electrically coupled to the conductive cylinder and having respective second conductors electrically coupled to the second ground conductor; and means for receiving and retaining a gas inside the divider/combiner. Methods of manufacturing are also disclosed.

Abstract: A power combiner/divider includes a main conductor defining an axis; an input connector having a center conductor, adapted to be coupled to a signal source, electrically coupled to the main conductor and having an axis aligned with the main conductor axis, and having a second conductor electrically coupled to a ground conductor; a cylinder conductor including an inner cylindrical surface radially exterior of and spaced apart from the main conductor, including an outer cylindrical surface, and having a cylinder axis aligned with the main conductor axis; and a plurality of output connectors having respective axes that are perpendicular to the main conductor axis, the output connectors being radially spaced apart relative to the main conductor, the output connectors having center conductors electrically coupled to the cylinder conductor and having respective second conductors electrically coupled to a second ground conductor. Methods are also provided.

Abstract: The invention provides a power divider, comprising: a plurality of transmission stages and a plurality of ground layers alternately arranged on respective ones of a plurality of dielectric layers, a first transmission stage being arranged on a first dielectric layer, and a last transmission stage being arranged below a last dielectric layer; wherein the plurality of transmission stages are arrayed vertically, each consisting of a loop formed by a transmission line; the first transmission stage has a first opening connected by a resistor, and each of the remaining transmission stages has the first opening connected by the resistor and a second opening without a resistor; two ends of the first opening of one of the adjacent transmission stages are connected to two ends of the second opening of the other one of the adjacent transmission stages by via transitions, in a top-to-bottom direction; and each ground layer has clearances through which the via transitions pass.

Abstract: A system/method describing a physically compact broadband radio frequency (RF) splitter/combiner is disclosed. The system and method provide an alternative to traditional broadband Wilkinson-style RF power splitter/combiners while reducing the overall size of the power divider/combiner to a significantly smaller form factor. The system and method utilize a serpentine impedance network (SIN) that incorporates a mirrored series of positive serpentine node (PSN) traces and negative serpentine node (NSN) traces. The PSN and NSN are coupled together within each isolated and mirrored SIN section with paired coupling traces (PCTs) located between the PSN and NSN traces that serve as both power transformers for the system and as an aid to impedance matching between the RF input port (RIP) and RF output ports (ROPs). The system is electrically symmetric and provides for power splitting and/or combining functionality between the RIP and ROPs.

Abstract: A TEM mode cell having an internal TEM element and at least one port on the cell comprising a stepped transmission line transformer coupling said element to the port. The cell comprises a hollow metallic housing having an enlarged center with opposite open ends, and a pair of end sections closing off said center open ends and tapering to a distal end of reduced cross sectional area. A connector at the distal end of each end section, and a stepped septum mounted within the housing and insulated therefrom, the septum coupled to and extending between the connectors. The septum having a central portion joining a pair of end portions each having a stepped contour reducing in size toward its connector. Each end portion has at least three steps in contour, with transition slopes between the steps being greatest leading to said central portion and the least leading to its connector.

Abstract: A power combiner/divider W1 which includes: a body portion in which a cavity is formed; a center coaxial connector which is formed on an approximately center portion of the body portion; a plurality of peripheral coaxial connectors 14 which are arranged concentrically about the center coaxial connector 11 and are formed on the body portion; a radial line which is formed in the cavity formed in the body portion; a center coaxial line which has one end thereof connected to the center coaxial connector and the other end thereof connected to a center portion of the radial line; and a peripheral coaxial line which has one end thereof connected to the peripheral coaxial connector and the other end thereof connected to an outer peripheral portion of the radial line, an impedance conversion part is provided to the radial line in one or plural stages.

Abstract: The invention relates to a microwave arrangement for the transmission of high-frequency signals of high powers comprising a microstrip conductor on an upper side of a substrate. The microstrip line comprises a multi-stage signal splitter and a ground surface on an underside of the substrate disposed opposite to the upper side. A defected ground structure is introduced into the ground-surface below a first stage of the signal splitter. Further a power combiner and/or a power splitter with a microwave arrangement according to example embodiments of the invention.

Abstract: Methods of designing band-pass filters and filters are disclosed. A baseline filter design meeting first design criteria may be established, the baseline filter design including a plurality of series surface acoustic wave resonators and a plurality of shunt surface acoustic wave resonators, each surface acoustic wave resonator having a respective resonant frequency. A performance metric based on an input impedance of the baseline filter design over a pass band may be determined. One or more alternate filter designs may be established and respective performance metrics determined, each alternative filter design established by reordering the resonant frequencies of two or more of the plurality of series surface acoustic wave resonators and/or two or more of the plurality of shunt surface acoustic wave resonators. A final filter design may be selected from the baseline design and the one or more alternate filter designs based on the respective performance metrics.

Abstract: A radio-frequency transceiver system comprises a radio-frequency processing unit, a transmitting microwave network and a receiving microwave network, wherein the transmitting microwave network comprises a transmitting power divider for distributing main power of transmitting signals to two central sub-array antennas of four sub-array antennas, and the receiving microwave network comprises a receiving power divider for providing power mainly from a first input terminal and a second input terminal for a receiving route, and providing power mainly from the second input terminal and a third input terminal for another receiving route.

Abstract: A high-frequency signal combiner comprises at least one first bridge coupler for the transformation of two input-end, first high-frequency signals into at least two output-end, first high-frequency signals in each case with identical power, and a second bridge coupler for the transformation of four input-end, second high-frequency signals, in each case with identical power, into an output-end, second high-frequency signal, of which the power corresponds to the summated power of the four input-end, second high-frequency signals. In this context, the four input-end, second high-frequency signals are each supplied from one output-end, first high-frequency signal. In order to add an integer multiple of four high-frequency signals, a cascade of second bridge couplers is realized with a number of cascade stages corresponding to the integer multiple. In every cascade stage, every second bridge coupler of the preceding cascade stage is replaced respectively by four second bridge couplers.

Abstract: A monolithic power splitter is used to split a pair of input differential signals into two pairs of output differential signals in the present invention. The monolithic power splitter has two input terminals to receive a pair of input differential signals, and it has two one-by-two power splitters integrated in one single chip to split a pair of input differential signals into two pairs of output differential signals with equal power. And, the monolithic power splitter has four output terminals to output two pairs of output differential signals. In one embodiment, the first one-by-two power splitter and the second one-by-two power splitter are made on the same surface of the substrate. In another embodiment, the first one-by-two power splitter and the second one-by-two power splitter are made on opposite surfaces of the substrate. The monolithic power splitter can be used as a power combiner based on the reciprocal property of the power splitter circuit.

Abstract: Embodiments of the present disclosure disclose an inner connecting element of a cavity power divider, the cavity power divider and a manufacturing method thereof. Two ends of the inner connecting element of the cavity power divider are respectively an input end and an output end, and the inner connecting element of the cavity power divider is in a sheet form. The cavity power divider comprises a cavity and at least three connectors. The cavity is provided with one connector at an input end thereof and with at least two connectors at an output end thereof. The connecting element is included in the cavity, with the input end and the output end of the connecting element being connected respectively with the connectors at the input end and the output end of the cavity.

Abstract: In an example embodiment, an in-phase recombinant waveguide combiner/divider device can comprise: a single waveguide input; N waveguide outputs, wherein N is an integer greater than 2; a first waveguide dividing portion; a second waveguide dividing portion; a third waveguide dividing portion; and a waveguide combining portion. The waveguide combining portion can be configured to combine two signals that are each respectively received from the second waveguide dividing portion and third waveguide dividing portion. In general an in-phase recombinant waveguide combiner/divider can comprise more junctions than output ports of a conservative power divider network structure. In an example embodiment, for a N-way waveguide power divider, there can be at least N+1 waveguide junctions.

Abstract: Embodiments of the invention include a combiner for an RF amplifier comprising wiring and a transmission line transformer. The transmission line transformer may include a ferrite core having a hole defined therein; a coaxial cable having a first dielectric constant and routed through the hole of the ferrite core; and a stripline having a second dielectric constant and routed around the ferrite core. In some embodiments, an electrical length of the stripline is matched to an electrical length of the coaxial cable. The electrical length of the coaxial cable may be defined by the first dielectric constant and the electrical length of the stripline may be defined by the second dielectric constant.

Abstract: An improved implementation of a 2×4 divider formed from a bridge junction is described. The bridge junction uses parallel and series connections of coaxial lines to eliminate impedance transformers that are normally required in a 2×4 power divider. In a preferred embodiment, the bridge junction is comprised of UT-085 coax transmission lines, 20 gauge twin lead wire and SB-805-61 ferrite beads with ½ turn windings to provide a wide bandwidth, compact, high power and rugged arrangement.

Abstract: A stacked diode limiter, which can suppress and eliminate a malicious high-power electromagnetic pulse signal and an Intentional Electromagnetic Interference (IEMI) signal that are input to the antenna line of a wireless system and that include a communication service frequency component having a power of several kW or more, includes a stacked diode unit including one or more diode stack parts formed on a center electrode of a coaxial line formed between an input connector and an output connector, each diode stack part being configured such that a plurality of diodes are arranged in series and stacked on top of one another, and an impedance matching unit for configuring dielectrics between the connectors and the coaxial line as heterogeneous dielectrics and matching impedances between the connectors and the coaxial line.

Abstract: The present invention relates to a structure of a diplexer that prevents outputs of both signals from influencing each other by removing mutual interference between both signals when a signal having a high pulse frequency and a signal having a low pulse frequency are combined and radiated by using the same antenna, and more particularly, to a 2-channel diplexer structure with two channels in which a substrate having a predetermined size is configured, five microstrip lines are arranged on the top of the substrate to be parallel to each other with a predetermined interval.

Abstract: A high-frequency signal combiner includes a first input terminal for the connection of a first high-frequency signal, a second input terminal for the connection of a second high-frequency signal, an output terminal for the output of the third high-frequency signal combined from the first and the second high-frequency signal. A first coaxial line extends between the first input terminal and the output terminal. A second coaxial line extends between the second input terminal and the output terminal. Furthermore, an annular core is provided, through the recess of which the first and second coaxial line are guided each in a different direction. The annular core is manufactured from an axially wound strip which includes a first layer made of a magnetizable material and a second layer made of an insulating material.

Abstract: A combiner includes N coaxial cables each configured to connect to a respective output of N radio frequency power amplifiers, where N is an integer greater than one. Each of the N coaxial cables is configured to receive an amplified radio frequency signal from a respective one of the N radio frequency power amplifiers. A board includes capacitances and is configured to connect to each of the N coaxial cables and combine the radio frequency signals. The N coaxial cables and the capacitances provide N inductance and capacitance combinations. A connector is configured to connect an output of the board to a load.

Abstract: 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.

Abstract: Embodiments of the invention include a combiner for an RF amplifier comprising wiring and a transmission line transformer. The transmission line transformer may include a ferrite core having a hole defined therein; a coaxial cable having a first dielectric constant and routed through the hole of the ferrite core; and a stripline having a second dielectric constant and routed around the ferrite core. In some embodiments, an electrical length of the stripline is matched to an electrical length of the coaxial cable. The electrical length of the coaxial cable may be defined by the first dielectric constant and the electrical length of the stripline may be defined by the second dielectric constant.

Abstract: An apparatus comprising a first power combiner/divider network and a second power combiner/divider network. The first power combiner/divider network splits a first electromagnetic signal into split signals that are connectable to signal processor(s). The second power combiner/divider network combines processed signals into a second electromagnetic signal. The apparatus includes a three-dimensional coaxial microstructure.