277 results about "Power combiner" patented technology

The invention discloses a Ka-band waveguide three-way power divider, which belongs to the technical field of microwave and millimeter waves, and is characterized in that a combining port is formed in the front side wall of a shielding box, and three distribution ports are formed in the rear side wall of the shielding box; a coplanar magic T equal power divider, a coplanar magic T equal power combiner, a branch waveguide unequal power divider, an L-shaped waveguide, a Z-shaped waveguide and a half waveguide-full waveguide gradual change structure are arranged in the shielding box. Wherein the coplanar magic T equal power divider comprises an E-T junction waveguide cavity, two equal branch waveguide cavities, a microstrip probe and a power resistance load, and outputs two paths of signals with equal amplitude and opposite phases; the branch waveguide unequal power divider comprises a four-branch waveguide directional coupler and an inclined-wedge-shaped waveguide matching load, and the output power ratio of a straight-through output port to a coupling output port is 2: 1. The filter has the advantages of being symmetrical in structure, good in amplitude and phase consistency, small in insertion loss, good in port standing wave and high in isolation degree.

The utility model discloses an annular megawatt-level power combiner, which comprises two groups of N-path coaxial waveguide power combiners for realizing N-in-one and one group of 2-path power combiners for realizing 2-in-one, each group of N-path coaxial waveguide power combiners comprises N coaxial input ports, N waveguide tubes and N-1 waveguide elbows; the N coaxial input ports are respectively and correspondingly arranged on the N waveguide tubes, and every two waveguide tubes are connected through a waveguide elbow, so that each group of N coaxial waveguide power combiners form a semi-ring structure; the output ends of the two groups of N-path coaxial waveguide power combiners are connected with the input end of the two-path power combiner, and a twisted waveguide is additionally arranged at the output end of the two-path power combiner, so that the output end of the two-path power combiner rotates by 90 degrees to form the output end of the annular megawatt-level power combiner.

The invention discloses an active power synthesis network of a micro-strip and waveguide hybrid architecture. The active power synthesis network comprises a micro-strip power division network, a micro-strip power amplification circuit, a waveguide power combiner and a power-on / power-off sequence control circuit. The power synthesis network is designed by adopting a micro-strip and waveguide hybrid architecture, so that the overall size can be greatly reduced on the premise of ensuring the power capacity of the power synthesis network; the power-on / power-off sequence control circuit based on the Zener diode is designed, the power amplification chip can be effectively protected and prevented from being damaged due to the wrong power-on / power-off sequence, meanwhile, the number of power needing to be supplied to the power amplification chip at the same time is reduced, and the use complexity of the power synthesis module is reduced.

The invention discloses a high-isolation waveguide three-way power dividing and combining network structure which comprises a waveguide three-way power divider and a waveguide three-way power combiner, and an amplifier is connected between the waveguide three-way power divider and the waveguide three-way power combiner. The waveguide three-way power divider comprises a power divider upper waveguide cavity and a power divider lower waveguide cavity which are symmetrically arranged, and the power divider upper waveguide cavity and the power divider lower waveguide cavity are connected through screws. The waveguide three-path power combiner comprises a combiner upper waveguide cavity and a combiner lower waveguide cavity which are symmetrically arranged, and the combiner upper waveguide cavity and the combiner lower waveguide cavity are connected through screws. Microwave signals are distributed by the waveguide three-way power distributor, amplified by the amplifier, and then combined by the three-way power combiner. By constructing a brand-new three-path power division and synthesis network architecture, the problem of mutual load traction of amplifiers in a traditional non-isolated network is solved, and the stability of power synthesis is improved.

An optical circuit is used with continuous wave signals having different wavelengths at a channel spacing from one another. A portion of the optical circuit is implemented in a photonic integrated circuit. Modulators in a modulation stage modulate the continuous wave signals to produce modulated signals. A multiplexing stage, which can have multiplexing filters, power combiners, or power couplers, multiplexes the continuous wave or modulated signals to produce multiplexed signals. The multiplexing stage may be placed either before or after the modulation stage. One or more polarization rotator and combiner (PRC) devices in a final stage combines the multiplexed signals into an output signal. The output signal has a first set of the different wavelengths at a first polarization and has a second separate set of the different wavelengths at a second polarization orthogonal to the first polarization.

A method for topological design optimization in which a number of objective scattering(S) parameters are initially decomposed into a product of smaller devices (primitives). Each of the primitives are optimized in parallel using inverse design; and the topologies of the smaller devices are then composited into a final device design region, in which the final device design region is an initialization of a final optimization, advantageously saving computation time. According to at least one embodiment, the herein described optimization procedure can be utilized in order to design a composite power combiner that is essentially phase-insensitive.

The invention discloses a photon antenna working at 275-296 GHz, and belongs to the field of photoelectron and terahertz communication. The UTC-PD comprises two UTC-PD bodies and a passive structure. The UTC-PD body adopts a double-mesa structure, each structure leads out an electrode by electroplating a small bonding pad, a metal bump is processed on the small bonding pad, and the UTC-PD body is electrically connected with a passive structure through flip-chip bonding. The passive structure comprises an impedance matching circuit, a power combiner circuit and a vivaldi antenna; the UTC-PD body generates a signal, and a built-in electric field is introduced by using the gradient doped absorption layer; a cliff layer is arranged between the absorbing layer and the collecting layer; and then, after the signal passes through an impedance matching circuit, the output impedance is close to 50 ohms, two combined output signals are superposed to the feed end of the Vivaldi antenna through a power combiner, and finally, the two combined output signals are converted into high-frequency electromagnetic waves with the frequency band of 275-296 GHz for radiation. Electromagnetic waves within the terahertz frequency range are generated and emitted, and the technical performance of high bandwidth, high gain and low insertion loss is achieved.

The utility model discloses a switching matrix of a high-power multipath coaxial switch, a coaxial switch switching matrix and a controller. The coaxial switch matrix comprises a plurality of coaxial switches, a plurality of output antennas, a plurality of power sources, a dummy load, a duplexer and a power combiner. The coaxial switch is used for connecting each component, the power source can be connected to any output antenna or dummy load, the duplexer is used for receiving two power sources and outputting the two power sources to any output antenna or dummy load, and the power combiner is used for receiving and combining a plurality of power sources and outputting the power sources to a specific output antenna or dummy load; and the controller is used for controlling the coaxial switch to switch.

Disclosed is a transmitter. The transmitter includes a plurality of power amplifiers, each of the plurality of power amplifiers being configured to receive an RF input signal, a parallel power combiner configured to combine outputs of the plurality of power amplifiers to generate an RF output signal, a supply voltage switch configured to provide one supply voltage to the plurality of power amplifiers, the one supply voltage being selected from among a plurality of supply voltages of different voltage levels, and a controller configured to control an output power of the RF output signal by selecting the one supply voltage from among the plurality of supply voltages, and controlling whether to activate each of the plurality of power amplifiers.

A balanced radio frequency power amplifier, a front-end module, and a corresponding electronic device. The balanced radio frequency power amplifier comprises a driving-stage power unit (101, 201), an inter-stage power divider (102, 202), a main path power amplifier (103, 203), an auxiliary path power amplifier (104, 204), a first output matching network (A105, A205), a second output matching network (B106, B206), and an output power combiner (107, 207). A symmetrical balance design is used for the main path power amplifier (103, 203) and the auxiliary path power amplifier (104, 204), so that the impact of the change in the antenna voltage standing wave ratio (VSWR) on the transmission power and the transmitting efficiency is overcome to the greatest extent. Moreover, a 3 dB distributed orthogonal coupler is used for the inter-stage power divider (102, 202) and the output power combiner (107, 207).

An apparatus includes a first power amplifier having a negative output terminal coupled to a first primary winding of a distributed transformer and a positive output terminal coupled to a second primary winding of the distributed transformer, a second power amplifier having a negative output terminal coupled to a third primary winding of the distributed transformer and a positive output terminal coupled to a fourth primary winding of the distributed transformer, a first conductive element connected between the negative output terminal of the first power amplifier and the negative output terminal of the second power amplifier, and a second conductive element connected between the positive output terminal of the first power amplifier and the positive output terminal of the second power amplifier.

The invention discloses a single-stage cavity type power combiner capable of adjusting output power, the single-stage cavity type power combiner is used for an accelerator high-frequency system power source, the single-stage cavity type power combiner adopts a section of coaxial line resonant cavity folded into an n shape as a main body structure of the combiner, and by increasing the number of branches synthesized at a time, the output power of the combiner can be adjusted. The number of the single-stage cavity type power combiner is equivalent to the number of branches of the multi-stage power combiner, so that the multi-stage power combiner is replaced by the single-stage cavity type power combiner; the single-stage cavity type power combiner comprises a plurality of input coupling structures, an output coupling structure and a coaxial line resonant cavity, the plurality of input coupling structures are divided into two groups and are symmetrically distributed at two ends of the coaxial line resonant cavity shaped like a Chinese character'ji ', and each input coupling structure is directly connected with an output port of each power amplifier unit; when the single-stage cavity type power combiner has a module fault, the coupling between the fault module and the system can be quickly relieved, and the output power of other power amplifier modules is adjusted, so that the overall output power is recovered to be balanced.

The invention relates to a double-cut-angle E-bend cavity type power combiner, which comprises a resonant cavity body, the resonant cavity body adopts a double-cut-angle E-bend resonant cavity structure, the front end surfaces of the two walls of the double-cut-angle E-bend resonant cavity structure are symmetrically provided with a plurality of first through holes, and the back of the double-cut-angle E-bend resonant cavity structure is provided with a second through hole; the number of the input couplers is set to be a plurality, one end of each input coupler penetrates through the corresponding first through hole and goes deep into the resonant cavity, and the other end of each input coupler serves as a radio frequency input port and is used for being in butt joint with a solid-state power amplifier module; and the output coupler is inserted into the second through hole, and an output port of the output coupler is used for being connected with a load. Therefore, the requirement of power cavity type synthesis output under lower frequency is met, the problem that the size of a rectangular cavity is too large under low frequency is solved, and the synthesis efficiency is high by adopting a first-stage synthesis method.

Power-combining devices and more particularly spatial power-combining and related structural arrangements are disclosed. Such structural arrangements involve mechanical connections between center waveguide sections and input and / or output coaxial waveguide sections that provide scalable structures for different operating frequency bands, improved mechanical connections, and / or improved assembly. Exemplary structural arrangements include structures that extend through center waveguide sections and into input and / or output coaxial waveguide sections, integrated mechanical structures within the center waveguide section, compression fit arrangements, dielectric inserts arranged within channels of coaxial waveguide sections, and / or various combinations thereof.

The invention discloses a 16-in-one high-power combiner working in a radio frequency band, and belongs to the technical field of fusion radio frequency heating. The invention comprises a coaxial input hard feeder line, a radial transmission line (RTL), a gradient impedance matching coaxial line and a coaxial output hard feeder line. The physical size is designed through theoretical calculation, electromagnetic field distribution is optimized through simulation, 16 radio-frequency signal input ports are designed through radial symmetric topology, a radial transmission line serves as a main synthesis path of radio-frequency signal source power, the power input by the 16 radio-frequency signal source ports is subjected to one-step efficient synthesis in the center of the radial transmission line, and the radio-frequency signal source power is obtained. And the 50-ohm characteristic impedance standard output of the synthesized radio frequency signal power is realized through an impedance matching technology. The sixteen-in-one power combiner designed by the invention has the characteristics of high synthesis efficiency, symmetrical structure, good amplitude and phase consistency, high isolation, low return loss, low reflection loss, simple design structure, easiness in manufacturing and the like.

The utility model relates to a four-path power combiner, which comprises an impedance reducing converter and an impedance increasing converter, and is characterized in that the impedance reducing converter is used for converting impedance into 1 / 2 of original impedance and outputting two paths of signals; and the impedance-increasing converter is connected with two output ends of the impedance-decreasing converter, and is used for converting the impedance into the original impedance while completing power synthesis. The impedance reduction converter comprises two coaxial lines, two magnetic rings and two isolation resistors; the two magnetic rings are respectively arranged on the two coaxial lines; the two isolation resistors are respectively bridged on the outer conductors of the two coaxial lines; the two output ends comprise a first output end and a second output end, the outer conductor and the inner conductor of one of the two coaxial lines are connected with the first output end, and the outer conductor and the inner conductor of the other coaxial line are connected with the second output end. The four-way power combiner is simple in circuit structure, small in circuit transmission loss and wide in working frequency, not only effectively improves the performance, but also reduces the process cost, can be widely applied to multiple fields, and has wide popularization value.

The invention relates to the technical field of power amplifiers, and discloses a GaN broadband radio frequency power amplifier which is applied to a multi-nuclear magnetic resonance system. The GaN broadband radio frequency power amplifier comprises a balance and nonlinear correction module, a preceding stage radio frequency amplification module, a driving stage radio frequency amplification module, a power divider, a radio frequency power amplifier and a power combiner. According to the invention, through the equalization and nonlinear correction module based on frequency identification, the fluctuation of the broadband gain is reduced, through linear correction, the stability of the gain and the stability of the phase are realized when the input power of the working frequency band is changed, and the frequency band coverage, the output power and the efficiency are improved.

Disclosed in the present invention are a load modulation power amplifier and a corresponding electronic device. The load modulation power amplifier comprises a driving-stage power amplifier and a bias circuit thereof, an input power divider, a harmonic impedance controller, a main-circuit power amplifier and a bias circuit thereof, an auxiliary-circuit power amplifier and a bias circuit thereof, and a load modulation power combiner, wherein the driving-stage power amplifier is provided with a transconductance-enhanced bias circuit, the main-circuit power amplifier is provided with a phase-adjustable bias circuit, and the auxiliary-circuit power amplifier is provided with a bias circuit with a controllable enabling power point. In cooperation with a harmonic impedance matching circuit and a load modulation power combiner that has less insertion loss, units collaboratively operate to realize linearization and high efficiency of a load modulation power amplifier, which can well meet the requirements of actual applications.

The invention discloses a high-precision calibration amplitude-phase control device and a transceiver, the amplitude-phase control device and the transceiver are composed of one or more circuit devices of a phase shifter, an attenuator, an amplifier, a power combiner, a power divider and a transceiving switch, and a high-precision calibration circuit of the amplitude-phase control device comprises a calibration adjustment unit. The calibration adjusting unit is composed of one or more of a resistance network, a capacitance network, an inductance network, a transistor network and a switch element network. An adjustable resistance network is introduced into a phase shifter orthogonal signal generation circuit, an adjustable capacitance network is introduced into a variable gain amplifier of the attenuator, performance parameters of the phase shifter and the attenuator are adjusted by regulating and controlling the resistance network and the capacitance network, an amplitude-phase control device and a transceiver are regulated and controlled through a calibration adjustment unit, and the amplitude-phase control device and the transceiver are adjusted and controlled through a calibration adjustment unit. And high-precision calibration and optimization of performance parameters of the amplitude-phase control device and the transceiver are realized.

The invention provides a power synthesis network and a radio frequency power supply, belongs to the technical field of radio frequency, and can solve the problems of large size, low power capacity and high heat consumption of an existing power synthesizer. The power synthesis network is applied to a radio frequency power supply. The radio frequency power supply comprises a plurality of power amplifiers, and the power amplifiers are configured to amplify radio frequency driving signals; the power synthesis network comprises at least two transmission structures in one-to-one correspondence with the power amplifiers; the first end of one transmission structure is connected with the output end of one power amplifier, the second ends of the transmission structures are connected with one another, and the connection node is a first synthesis node; the transmission structure adopts a lumped parameter circuit and is configured to filter the amplified radio frequency driving signal, generate a filter signal and transmit the filter signal to the first synthesis node; the filtered signals converge at the first synthesis node to form a first synthesis signal. The power synthesis network has the advantages of being small in size, large in power capacity and low in heat consumption.

The invention provides a satellite-borne interference SAR (Synthetic Aperture Radar) system based on a reflector antenna system. The satellite-borne interference SAR system comprises a reflector antenna, a power combiner, a transceiving channel, a circulator, a low noise amplifier component, a radar processor and an inter-satellite communication terminal, the interference mode of the spaceborne interference SAR system adopts a two-satellite formation flight mode, and the spaceborne interference SAR system configurations of the two satellites are completely consistent; during working, any satellite is set as a primary satellite, and the other satellite is set as a secondary satellite; time, space and phase synchronization is carried out on the satellite-borne interference SAR systems of the two satellites, space synchronization is achieved through the satellites, time synchronization is achieved through an S-frequency-band and Ka-frequency-band communication link, and phase synchronization between the satellite-borne interference SAR systems is achieved through an X-frequency-band and Ka-frequency-band communication link. The system has the advantages of stable performance, high efficiency, strong expansion capability and the like.

An example device includes a first primary coil, a second primary coil, a combined power output, a first directional coupler output, a second directional coupler output. The example device also includes a secondary coil coupled to the combined power output, configured to magnetically couple to the first primary coil, and configured to magnetically couple to the second primary coil. The example device further includes a tertiary coil configured to magnetically couple to the secondary coil and including a first end coupled to the first directional coupler output, and a second end coupled to the second directional coupler output.

The invention discloses a rectangular waveguide power combiner. The synthesizer comprises a main waveguide power combining module and mutually symmetrical secondary waveguide power combining modules, the main waveguide power combining module comprises a first short arm waveguide and first branch arm waveguides which are symmetrical to each other; the first short-arm waveguide comprises a first step waveguide unit and a first width gradient waveguide unit coupled with the first step waveguide unit; each first branch arm waveguide comprises a first standard rectangular waveguide unit and a length gradient waveguide unit coupled with the first standard rectangular waveguide unit; each secondary waveguide power combination module comprises a second short arm waveguide and second branch arm waveguides which are symmetrical to each other; each second short-arm waveguide comprises a second width gradient waveguide unit; each second branch arm waveguide comprises a second step waveguide unit and a second standard rectangular waveguide unit coupled with the second step waveguide unit; and each second width gradient waveguide unit is correspondingly coupled with each first standard rectangular waveguide unit.

A device includes, in part, an antenna adapted to receive an RF signal that includes modulated data, a splitter / coupler adapted to split the received RF signal, a receiver adapted to demodulate the data from a first portion of the RF signal, and a power recovery unit adapted to convert to a DC power a second portion of the RF signal. The splitter / coupler is optionally adjustable to split the RF signal in accordance with a value that may be representative of a number of factors, such as the target data rate, the DC power requirement of the device, and the like. The device optionally includes a switch and / or a power combiner adapted to deliver all the received RF power to the receiver depending on any number of operation conditions of the device or the device's distance from an RF transmitting device.

The invention relates to the technical field of radio frequency power synthesis, and provides an anti-phase broadband power synthesizer based on a high-permeability material, which comprises four power synthesis input ports, namely a port P2, a port P3, a port P4 and a port P5; an output port, namely a port P1; the five transmission line transformers, namely the transmission line transformer TL1, the transmission line transformer TL2, the transmission line transformer TL3, the transmission line transformer TL4 and the transmission line transformer TL5, all adopt coaxial lines, and the core and the shell of each coaxial line form the transmission line transformer with the ratio of 1: 1 and are all wound on a magnetic core made of a high-permeability material. According to the synthesizer, a high-permeability material is introduced, the natural anti-phase characteristic of the high-power transmission line transformer is utilized, an anti-phase power synthesis network is constructed, and the problems that in traditional broadband power synthesis, the broadband power synthesis difficulty of the frequency band ranging from 9 kHz to 100 MHz is large, and the power capacity is insufficient are solved.

The present invention provides a signal multipath effect simulation system, which includes a radio frequency signal generator, a power splitter, a plurality of signal simulation devices, a power combiner, and a signal receiver. Each signal simulation device is used to simulate signals with different time delays. The signal simulation device includes an amplitude controller and a single-signal simulator connected in transmission. The amplitude controller is used to control the amplitude of the signal. The single-signal simulator includes a time delay control board, a waveguide transmission structure, and a radio frequency switch. The waveguide transmission structure includes a plurality of transmission paths with different lengths. The radio frequency switch is used to selectively conduct each transmission path. The radio frequency switch and at least some of the transmission paths are both arranged on the time delay control board. The signal multipath effect simulation system provided by the present invention can, through the coordinated operation of a plurality of single-channel simulators, simulate the multipath effect in a complex channel environment in real time and accurately, and provide high-precision channel characteristic simulation.

This disclosure is directed to a power combiner / divider with improved operating frequency range (e.g., bandwidth) compared to other power combiners / dividers. The power combiner / divider may include an isolation circuit including a first resonant circuit and a second resonant circuit coupled to terminals (e.g., input terminals, output terminals) of the power combiner / divider. The first resonant circuit may attenuate signals having frequencies in a first frequency range below an attenuation threshold between the terminals of the power combiner / divider. The second resonant circuit may attenuate signals having frequencies in a second frequency range below an attenuation threshold between the terminals of the power combiner / divider. Accordingly, the isolation circuit may improve isolation between multiple terminals of the power combiner / divider at a wider bandwidth compared to other power combiners / dividers based attenuating cross-talk between the terminal at the first frequency range and the second frequency range.

The invention relates to the field of signal processing, in particular to a frequency doubler device for suppressing quartic stray. The device comprises: a power divider-90 DEG for receiving an input signal; the input ends of the two frequency doublers are respectively connected with the two output ends of the power divider (-90 degrees); and the input end of the power combiner (180 DEG) is connected with the output ends of the two frequency doublers. According to the frequency multiplier device for suppressing the quartic stray, the high suppression degree of quartic harmonics is achieved, and the frequency multiplier device has a large application prospect in broadband radar signal generation.

An exemplary device includes a first primary coil, a second primary coil, a combined power output, a first directional coupler output, and a second directional coupler output. The exemplary device also includes a secondary coil coupled to the combined power output, configured for magnetic coupling with the first primary coil and configured for magnetic coupling with the second primary coil. The exemplary device further includes a tertiary coil configured for magnetic coupling with the secondary coil, comprising a first end coupled to the first directional coupler output and a second end coupled to the second directional coupler output.

The present invention discloses a feed network system, belonging to the field of antenna feeding technology. It comprises four 2x2 rectangular arrays of equal-amplitude, 90° network sub-arrays and a power combining network composed of a four-in-one Wilkinson power combiner located at the bottom of the sub-arrays. The four arrays of equal-amplitude, 90° network sub-arrays achieve signal synthesis output through a cascaded four-in-one Wilkinson power combiner. The equal-amplitude, 90° network sub-arrays comprise a first metal ground plate, a first microwave substrate, a first metal signal line, a first prepreg, a second microwave substrate, a second metal ground plate, a second prepreg, a second metal signal line, a third microwave substrate, and a third metal ground plate, stacked sequentially from top to bottom. The microwave substrates are bonded together by prepregs, thereby achieving a feed network capable of connecting four feed points with right-handed equal-amplitude, 90° antenna signals. The present invention reduces the horizontal and lateral dimensions of the feed network, achieving miniaturization and high integration of the antenna array.