204 results about "Power combiner" patented technology

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.

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).

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.

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 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.

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.

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.

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.

The application discloses a V-band six-way waveguide power combiner and belongs to the technical field of satellite communication. The application comprises a shielding box main body, wherein a straight-through input port, a branch waveguide three-way power divider, an input waveguide cavity, an input co-planar magic T, a waveguide-microstrip-waveguide conversion structure, an output co-planar magic T, an output waveguide cavity, a branch waveguide three-way power combiner and a straight-through output port are arranged in the shielding box main body from left to right. An isolation waveguide cavity is arranged on the front and back sides of the input port of the branch waveguide three-way power divider and on the front and back sides of the output port of the branch waveguide three-way power combiner. A wedge-shaped wave-absorbing material is arranged in the isolation waveguide cavity. The shielding box main body comprises an upper box body and a lower box body, the upper box body and the lower box body are fixed through screws and form the shielding box main body. The application realizes non-binary power combination and has the characteristics of small insertion loss, wide frequency band and good isolation.

The invention relates to a power combiner (1) for coupling RF signals, in particular designed for a plasma processing supply system and a plasma processing system, the power combiner (1) being designed for a predefined operating frequency range with frequencies in the range of 2 MHz to 200 MHz, in particular in the range of 10 MHz to 50 MHz, the invention relates to a power combiner designed for output power > = 2 kW, preferably output power > = 4 kW, comprising: e) a plurality of inputs (In1 to In4) designed for connecting RF power amplifier stages (AS1 to AS4); f) a main output (OUT); g) a plurality of coupling elements, in particular in the form of inductors (L1 to L4), each coupling element connecting one input (In1 to In4) to the main output (OUT); h) a balancing circuit (B) connecting the inputs (In1 to In4) to each other, having: iii) an energy absorber, in particular in the form of resistors (R1 to R4), and a balancing line (W1 to W4), having a fixed characteristic impedance and a length of this,

This invention belongs to the field of optical fiber communication technology and discloses a low-refractive-index doped mother tube, a capillary, a preparation method, and applications. The invention first deposits a low-refractive-index doped silicon dioxide layer on the inner surface of a pure silicon dioxide liner to prepare a low-refractive-index doped mother tube. Then, the low-refractive-index doped mother tube is heated to its softening temperature and drawn to obtain a low-refractive-index doped capillary. The minimum relative refractive index difference of the low-refractive-index doped silicon dioxide layer in this invention is -1.8% to -2.6%. The low-refractive-index doped capillary designed in this invention can be used to prepare optical fiber power combiners and can improve the performance of the combiners.

The utility model provides a power amplifier. The power amplifier comprises an adaptive bias circuit, an input matching balun, a primary driving amplifier, a power divider, a first secondary driving amplifier, a second secondary driving amplifier, a first inter-stage matching network, a second inter-stage matching network, a first power stage amplifier, a second power stage amplifier and a power combiner. The high output power of the power amplifier is realized by synthesizing the two paths of amplified differential signals through the power combiner, and the variable capacitance tube is added in the driving amplifier to compensate the non-linear change of the input capacitance of the transistor, so that the linearity of the circuit is improved; furthermore, a direct-current bias signal corresponding to the radio-frequency signal is output through the self-adaptive bias circuit to dynamically adjust the power-stage amplifier, so that the power amplifier has a gain complementary effect, the linearity of the power amplifier circuit is improved, and the power amplifier has high-power and high-linearity radio-frequency signal output.

The present invention discloses a photonic antenna operating at 275 - 296 GHz, belonging to the fields of optoelectronics and terahertz communication; it includes two UTC-PD bodies and a passive structure; the UTC-PD body adopts a double mesa structure, and each structure leads out electrodes through electroplated small pads, and metal bumps are processed on the small pads to generate electrical connection with the passive structure through flip-chip bonding. The passive structure includes an impedance matching circuit, a power combiner circuit, and a Vivaldi antenna; the UTC-PD body generates signals, and a built-in electric field is introduced by using a gradient-doped absorption layer; a cliff layer is provided between the absorption layer and the collection layer; then, after the signal passes through the impedance matching circuit and the output impedance is close to 50 ohms, the two combined output signals are superimposed on the feed end of the Vivaldi antenna through the power combiner, and finally, it is converted into high-frequency electromagnetic waves in the 275 - 296 GHz frequency band for radiation. The present invention generates and emits electromagnetic waves in the terahertz frequency range, achieving technical performances of high bandwidth, high gain, and low insertion loss.

The invention provides a radio frequency power combiner, a radio frequency power supply and electronic equipment. The radio frequency power combiner comprises a plurality of input channels, an output channel, a plurality of first impedance matching circuits and a second impedance matching circuit, the output end of each input channel is connected with an output channel; one part of each first impedance matching circuit is integrated in the corresponding input channel, and the other part of each first impedance matching circuit is integrated in the output channel; or all the first impedance matching circuits are integrated in the corresponding input channels; the second impedance matching circuit is integrated in the output channel; one of the first impedance matching circuit and the second impedance matching circuit is a low-pass filter, and the other one is a high-pass filter; the output impedance of the multiple input channels at the intermediate node and the input impedance of the output channel meet conjugate matching, the intermediate node is a connection point between the first impedance matching circuit and the second impedance matching circuit, the working bandwidth of the radio frequency power combiner can be improved through a simple circuit structure, and the applicability is high.

The invention relates to an on-chip fully-integrated terahertz signal spread spectrum device based on a SiGe BiCMOS (Bipolar Complementary Metal-Oxide-Semiconductor Transistor) process. The on-chip fully-integrated terahertz signal spread spectrum device comprises a filtering frequency doubler, a single-ended differential Balun, a differential filtering frequency tripler, a differential driving amplifier, a differential power divider, a differential power amplifier, a differential filtering frequency doubler, a terahertz power combiner and a transmission line waveguide converter. Radio frequency input of 9.16 GHz-13.75 GHz is externally provided, the radio frequency input is converted into a differential signal through the single-ended differential Balun after being subjected to frequency doubling twice through the two filtering frequency doublers, the differential signal is subjected to frequency doubling triple through the differential filtering frequency tripler, the single-path differential signal obtains gain through the differential driving amplifier, the single-path differential signal is converted into two-path signals through the differential power divider, and the two-path signals are transmitted to the output end of the output end of the output end of the output end of the output end of the output end of the output end of the output end of the output end. Differential power amplification and differential filtering frequency doubling are respectively carried out, and then the signals are combined into one path by a terahertz power combiner, so that a terahertz signal of 220GHz-330GHz is obtained.

The utility model discloses a Ku frequency band 50W slide glass type power amplifier, which belongs to the technical field of microwave and millimeter wave and comprises two GaN power amplifier chips, an input thin film circuit, an output thin film circuit, four power resistance loads, four large chip capacitors, sixteen small chip capacitors, a slide glass and the like. The saturation output power of the GaN power amplifier chip is 45.5 dBm (namely 35W); the input film circuit is composed of an improved Gysel power divider and a power supply microstrip. The output thin film circuit is composed of an improved Gysel power combiner and a power supply microstrip. The power resistance load can bear a continuous wave signal with the power of 20W; the capacitance of the large chip is 1000pF, and the capacitance of the small chip is 100pF; all the components are soldered on a slide glass in an eutectic manner and are interconnected through a gold belt or a gold wire. The Ku frequency band 50W power amplifier module has the characteristics of small volume, light weight, good heat dissipation and simple structure, and solves the problems of large volume and heavy weight of the existing Ku frequency band 50W power amplifier module.

The application discloses a Ka-band eight-way power combiner, which comprises a shielding box body, wherein a straight-through input port, an input waveguide cavity, an input coplanar magic T, a secondary waveguide power division module, a waveguide-microstrip double-probe conversion structure, a secondary waveguide power synthesis module, an output waveguide cavity, an output coplanar magic T and a straight-through output port are sequentially arranged in the shielding box body along a signal transmission direction; the secondary waveguide power division module and the secondary waveguide power synthesis module both adopt an E-T junction structure and are integrated with a three-stage waveguide E-plane stepped structure, so as to realize impedance matching from an input end to an output end; the Ka-band eight-way power combiner has high synthesis efficiency, extremely low amplitude imbalance and phase imbalance in the Ka band through multi-stage waveguide impedance matching, optimized double-probe conversion and symmetrical layout design. The combiner has the advantages of compact structure, large power capacity, simple machining and assembly and good stability.