360 results about "High isolation" patented technology

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.

A device useful as a switch including an input waveguide coupled to an output waveguide; a first diode circuit integrated with the input waveguide at a first termination; a second diode circuit integrated with the output waveguide at a second termination; and wherein the biasing the diode circuits switches the switch between an off state and an on state and achieves high isolation in the off state by absorbing input power in, reflecting the input power from, and frequency multiplying the input power using the diodes in the diodes circuits when the input power is received from the input waveguide. In one embodiment, the switch is a tunable, solid-state SPST switch for Gband radar applications.

The invention discloses a multichannel broadband receiver, and belongs to the technical field of microwave radio frequency and electronic control, the multichannel broadband receiver comprises a multichannel down-conversion assembly, a local oscillator power component, a power interface control panel and a VPX connector, the down-conversion assembly adopts a cavity-divided integrated structure, multiple identical radio frequency links are arranged in the same cavity in parallel, and the VPX connector is connected with the local oscillator power component. Down conversion from a 2-18GHz radio frequency signal to a 1.3-2.3 GHz intermediate frequency signal is realized through two-stage frequency mixing; the power supply interface control board takes an FPGA as a core, integrates the functions of multi-path power supply conversion, driving isolation, state monitoring and the like, and realizes channel gain power failure storage and calling, BIT self-inspection, nanosecond rapid turn-off and multi-parameter real-time monitoring through software and hardware cooperation. Through collaborative innovation of the structure, circuit and control, high integration, high channel consistency, high isolation and high intelligence of the multi-channel receiver are realized, and the multi-channel receiver is suitable for the fields of high-performance radars, electronic countermeasures and the like.

The invention belongs to the technical field of full-duplex communication, and particularly discloses a high-isolation full-duplex transceiver system and a control method.The system comprises a transmitting module, a receiving module and a full-duplex baseband module, the transmitting module comprises a power amplifier module and a first oscillator, the power amplifier module is connected with the full-duplex baseband module, and the first oscillator is connected with the receiving module; an intermediate frequency signal transmitted by the full duplex baseband module enters the power amplifier module, is mixed with a signal with a frequency f4 generated by the first oscillator, and is up-converted to a frequency f3; the receiving module comprises a second oscillator and a low-noise amplifier module, the second oscillator is connected with the low-noise amplifier module, a receiving antenna of the receiving module receives the signal and inputs the signal into the low-noise amplifier module for frequency mixing with the signal of the second oscillator, the signal is down-converted to frequency f2, and the signal enters the full-duplex baseband module for data processing. By adopting the technical scheme, based on each module, the influence of self-interference leaked by a transmitting link on a receiving link is completely avoided, and the design complexity of any system is not increased.

The invention, which relates to the technical field of modern communication, discloses a metasurface-based high-gain low-profile dual-circularly polarized antenna comprising a first dielectric plate, a second dielectric plate arranged below the first dielectric plate, and a metasurface structure arranged above the first dielectric plate. Three rows and three columns of periodically arranged metasurface structures are arranged above the first dielectric plate, a multi-level cooperative working mechanism is constructed by combining 45-degree symmetrical composite gaps etched in a layer indirect floor and a microstrip feeder line which is orthogonally arranged on the lower layer, and the metasurface array realizes high-gain radiation by regulating and controlling the phase of electromagnetic waves. The composite slot structure efficiently converts microstrip line energy into an orthogonal degenerate mode through non-contact coupling, circular polarization purity is guaranteed, the axial ratio bandwidth is expanded to 24.2%, an orthogonal microstrip feeder line forms a 90-degree phase difference through accurately controlled size, high isolation and stable standing-wave ratio of double ports are guaranteed, and the antenna has a wide application prospect. And finally, dual-circular-polarization independent radiation is realized in a 5mm low-profile structure.

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 discloses a high-isolation broadband four-port dual-polarized antenna based on differential and common modes and a communication terminal. Comprising a feed layer, a lower dielectric layer, a metal floor, an air layer, an upper dielectric layer and a radiation patch which are stacked in sequence. The feed layer is located on the lower surface of the lower dielectric layer and comprises a feed connector, a micro-strip feeder line, a lumped capacitor, a lumped inductor, a feed metal column and a short circuit metal column. The metal floor is located on the upper surface of the lower dielectric layer, and a plurality of circular gaps concentric with the feed metal columns are etched in the metal floor. The radiation patch is located on the upper surface of the upper dielectric layer, is composed of a horizontal rectangular metal, a vertical rectangular metal and an inclined metal branch, and is used for improving the isolation between different feed ports. The antenna has the characteristics of simple structure, wide band, high isolation and dual polarization, and is suitable for application scenes such as multiple-input-multiple-output (MIMO) systems, radars, satellites and base stations.

The embodiment of the application provides an antenna system and an electronic device, wherein the antenna system comprises a first antenna and a second antenna, the first antenna comprises a first radiator and a second radiator, and the second antenna comprises a first radiator and a third radiator; two ends of the first radiator are electrically connected to a ground plane respectively, a first end of the second radiator and a first end of the third radiator are relatively far away from each other and are connected or coupled to the first radiator respectively, a second end of the second radiator and a second end of the third radiator are oppositely arranged and form a gap, the antenna system feeds the first antenna through a first feeding connection point on the second radiator and feeds the second antenna through a second feeding connection point on the third radiator, a brand-new antenna system is constructed, high isolation between the first antenna and the second antenna can be realized, and meanwhile, miniaturization of an antenna aperture and a low SAR value can be realized.

The invention discloses a broadband / high gain / high isolation / low cross polarization dual polarized antenna for millimeter wave communication. The antenna is formed by combining and fastening three layers of dielectric plates through screws, and double surfaces of each layer of dielectric plate are coated with copper. From top to bottom, the first dielectric plate is provided with a square substrate integrated cavity (SIC) enclosed by metal through holes, a first metal layer is etched along the range of the SIC to form an open aperture for antenna radiation, and meanwhile, a windmill type metal patch is loaded at the central position of the aperture surface to maintain an internal electric field of the SIC to be in a TM mode in a working frequency band; the symmetrical structure provides a dual-polarization radiation condition. And meanwhile, the SIW feed transmission lines are orthogonally arranged, so that the requirement of high isolation between the two input ports can be met.

The utility model relates to the technical field of satellite signal control, in particular to a GNSS (Global Navigation Satellite System) signal forwarding system. Comprising a first antenna, a second antenna, an input change-over switch, a gain adjusting module, a control module, a power divider, an output change-over switch, a multi-path output module and a bias module, the first antenna and the second antenna are both connected with the input end of the input change-over switch, the output end of the input change-over switch is connected with the input end of the gain adjusting module, the output end of the gain adjusting module is connected with the input end of the power divider, and the output end of the power divider is connected with the multi-path output module. The input change-over switch, the gain adjusting module and the output change-over switch are all connected with the control end of the control module; the bias module is connected with the input change-over switch, the output change-over switch and the control module; according to the scheme, the isolation degree is high, the signal intensity of signal output is guaranteed, the positioning speed is effectively improved, the circuit is simple, the manufacturing cost is low, and the market competitiveness is effectively improved.

The invention discloses a W-band switching line MMIC phase shifter based on an aligned CNT Schottky diode. The phase shifter comprises a substrate, a radio frequency input port, a radio frequency output port, two transmission paths with different physical lengths, a switch selection network and a direct current bias circuit. Wherein the switch selection network adopts an aligned carbon nanotube Schottky diode and is configured at the input end and the output end of the transmission path. Complementary control voltage is applied through the direct-current bias circuit, the switch selection network is driven to enable the selected paths to be conducted at the two ends at the same time and the unselected paths to be cut off at the two ends at the same time, and therefore discrete switching of phases is achieved. The high-frequency characteristic of the aligned carbon nanotube device is combined with the double-end complementary selection topology, so that the problem that the amplitude imbalance and the phase precision are difficult to consider at the W wave band is effectively solved, the signal leakage and the parasitic resonance of a non-conducted branch are remarkably inhibited, and the low-insertion-loss high-isolation low-insertion-loss high-isolation low-insertion-loss high-isolation low-insertion-loss high-isolation low-insertion-loss high-isolation low-insertion-loss high-isolation low-insertion-loss high-isolation low-insertion-loss low

This application provides a dual-polarized differential base station antenna, relating to the field of communication technology. The dual-polarized differential base station antenna includes a dielectric substrate, a first resonant cavity, multiple second resonant cavity groups, a coupling component, and a coaxial feed conductor. The first resonant cavity is disposed inside the dielectric substrate and extends to the upper and lower surfaces of the substrate. A first radiation slot is provided on the upper surface of the first resonant cavity. Multiple second resonant cavity groups are symmetrically distributed around the first resonant cavity. Each second resonant cavity group includes at least one second resonant cavity, and a second radiation slot is provided on the upper surface of each second resonant cavity. The coupling component connects the first resonant cavity to each second resonant cavity group. The coaxial feed conductor is connected to a ground plane and penetrates the dielectric substrate to connect to the upper surface of the first resonant cavity. The dual-polarized differential base station antenna of this application achieves high gain, high isolation, and wide bandwidth performance while maintaining a low profile structure.

An ultra-wideband end-fire antenna with a common aperture embedded in a metal carrier includes a metal cavity with a coaxial cable compartment on one side. A radiator module is connected to the bottom of the metal cavity via a radiator fixing slot. The radiator module includes a common aperture antenna substrate. A low-frequency radiator is printed on the side of the common aperture antenna substrate closer to the coaxial cable compartment, and a high-frequency radiator is printed on the side farther from the coaxial cable compartment. This invention utilizes a dual-band antenna in a common aperture design to enhance the channel capacity and anti-fading capability of the communication system. At the same time, by achieving the antenna's carrier conformal characteristics, high isolation, and miniaturization, it enriches the antenna's application scenarios and improves the overall performance of the communication system.

The application provides a high-isolation dual-polarized phased array TR assembly based on front and back layouts, and relates to the technical fields of microwave and phased array radar. The assembly comprises a multilayer printed board structure cavity, a first surface of the multilayer printed board structure cavity is provided with a radio frequency link of a first polarization channel, and a second surface is mirror-imaged with a radio frequency link of a second polarization channel; the first surface is opposite to the second surface; the first polarization channel and the second polarization channel are orthogonal polarization channels. The application fundamentally solves the polarization crosstalk problem caused by the traditional side-by-side layout, can improve the dual-polarization isolation to more than 80 dB, optimizes the space utilization and the heat dissipation path, and is particularly suitable for high-density and high-performance dual-polarized phased array antenna systems.

The invention discloses a high-isolation and high-selectivity filtering power divider with an input end broadband non-reflection characteristic. Comprising an input port, two output ports, a double-L-shaped non-reflection absorption structure, two microstrip connecting lines, two parallel coupling lines, two L-shaped step resonators, two non-reflection absorption isolation resistors, a quarter-wavelength parallel coupling connecting line and two U-shaped transmission lines. The input port is a first port; the two output ports comprise a port II and a port III; the double-L-shaped non-reflection absorption structure comprises a first non-reflection absorption resistor, a second non-reflection absorption resistor, a first L-shaped non-reflection absorption connecting line and a second L-shaped non-reflection absorption connecting line. According to the invention, the broadband reflection-free absorption characteristic of the input end and the broadband high isolation between the output ports are realized at the same time, a plurality of transmission zeros are introduced through the L-shaped step resonators, and the frequency selectivity and out-of-band rejection are improved.

This invention discloses a wideband, high-isolation single-pole five-throw switch chip, comprising six ports, two power ports, five control ports, twenty microstrip lines, one capacitor C1, twenty-five switching transistors, twenty-five gate resistors, and five voltage control modules. The six ports are port 1, port 2, port 3, port 4, port 5, and port 6; port 1 is the RF input port; ports 2, 3, 4, 5, and 6 are output ports. The RF input and output ports are connected via the two power ports, five control ports, twenty microstrip lines, one capacitor C1, twenty-five switching transistors, twenty-five gate resistors, and five voltage control modules. Compared to existing single-pole five-throw switches, this invention is integrated on a single chip, offering the advantage of small size. The use of voltage control modules significantly reduces the number of power supply modules, facilitating application.

The invention discloses a folded substrate integrated waveguide filtering crossing device which comprises a top metal layer, a middle metal layer, a bottom metal layer, a dielectric layer, a first metalized through hole array, a second metalized through hole array, a third metalized through hole array and input and output ports. According to the filter crossing device, three cavity cascade paths of FSIW, stacked SIW and FSIW are constructed, coupling between TE0.5, 0 and 1 modes in an FSIW rectangular cavity and a TE101 mode in a middle SIW rectangular cavity is used as a design core, a filtering function is achieved on the basis of completing cross transmission between two channels, and the filter crossing device is simple in design while the compactness and high isolation performance of the structure are kept.

The application discloses an antenna pair with high isolation and low cross polarization level, which comprises a first radiation patch and a second radiation patch arranged as two half-circle ring structures, and the first radiation patch and the second radiation patch are connected through a first branch and a second branch; the first radiation patch and the second radiation patch work in a full-wave mode; the first branch and the second branch are arranged to overlap the resonant frequencies under differential and common mode excitation of two feed ports, and good matching is ensured, so that the isolation of the first radiation patch and the second radiation patch in the band is effectively improved; through the above arrangement, the mode Q value under differential and common mode excitation is close to the same, and the first radiation patch and the second radiation patch can further have high isolation in a wider frequency range. In addition, by introducing a first short pin group and a second short pin group, the polarization current in the x-axis direction can be effectively weakened, and the cross polarization level is reduced.

The application discloses a high-isolation Ku-band full-bandwidth linear polarization duplexer for satellite communication, an E-plane rectangular waveguide is used for connecting a base mode TE 10 mode in a vertical polarization form in an uplink and outputting to a first E-plane 90-degree twist waveguide, the first E-plane 90-degree twist waveguide rotates a propagation direction of the base mode TE 10 mode by 90 degrees and then outputs to a vanished-mode ridge waveguide band-pass filter, the vanished-mode ridge waveguide band-pass filter selects the base mode TE 10 mode in the uplink and outputs to a second E-plane 90-degree twist waveguide, the second E-plane 90-degree twist waveguide rotates a propagation direction of the base mode TE 10 mode by 90 degrees and then outputs to an orthogonal mode coupler, the orthogonal mode coupler is used for converting the base mode TE 10 mode into a base mode TE 11 mode and then outputting and converting the base mode TE 11 mode into TE 01 mode, and outputting the TE 01 mode to a stepped impedance filter, the stepped impedance filter selects TE 01 mode in a downlink, and outputting the TE 01 mode to a copper drum H-plane rectangular waveguide; the application has the advantages of simple structure, wide working frequency band and the ability to cover the whole Ku-band bandwidth.

The invention discloses a communication antenna and a communication system, and belongs to the technical field of antennas. The communication antenna comprises a plurality of improved PIFA antenna units, and each antenna unit is arranged on the same plane grounding plate in a circumferential array mode. Besides, the feed phases of the four units are set to be equal-amplitude excitation which is lagged by 90 degrees in sequence, so that radiation fields of the four units are subjected to vector synthesis in a far-field space, and left-hand circularly polarized waves are formed. The communication antenna has the advantages of being low in cost, low in profile, light in weight, easy to process and good in broadband circular polarization performance, and meanwhile a high-performance PA, a low-noise LNA and a duplexer with high isolation and high suppression degree are adopted in a communication system circuit. Therefore, the whole system is excellent in transmitting power, receiving sensitivity and anti-interference capability, and high-quality and uninterrupted satellite communication in a vehicle-mounted environment is ensured.

The utility model belongs to the technical field of switching power supplies, and particularly discloses a high-isolation power supply power supply module, which comprises a metal base, an insulating shell and a magnetic device, the metal base and the insulating shell arranged at the upper part of the metal base jointly form a closed shell, a double-sided PCB (Printed Circuit Board) is arranged above the metal base in the shell, and a gap is formed between the double-sided PCB and the metal base; the double-sided PCB upwards extends to the shell from a hole in the shell through guide pins at two ends, and one end of the PCB downwards penetrates through the metal base through a screw; a through hole is formed in the double-sided PCB, and a magnetic device is arranged in the through hole; a layer of ceramic chip is arranged between the double-sided PCB and the metal base, and the bottom of the magnetic device is attached to the upper surface of the ceramic chip. According to the high-isolation power supply power supply module, a traditional technology is improved, a high-voltage insulation scheme which is resistant to high voltage, moisture-proof, good in insulation effect and high in stability is provided, and the stability and the reliability of the power supply module in practical application are improved to a certain extent.

The application discloses a binary antenna with ultra-wideband and high isolation and a design method thereof, and mainly solves the problem that the bandwidth of the existing traditional antenna is too narrow to adapt to the demand of a wideband communication system. The application comprises a dielectric substrate, a metal floor and two symmetrical cone monopole antennas and a symmetrically designed antenna decoupling matching network (DMN), wherein the DMN is formed by bending eleven groups of transmission lines with fixed length and width, the first seven groups are used for decoupling of the antenna, and the last four groups are used for matching adjustment. Through the DMN, high port isolation (> 20 dB) between the two cone monopole antennas is realized. The DMN designed in the application has high design freedom, and compared with other decoupling technologies, a wider decoupling bandwidth is realized.

The utility model relates to a kind of optical fiber sensing technology, specifically a kind of high-isolation raman wave division multiplexer for DTS, including first wave division multiplexer, second wave division multiplexer, erbium-doped fiber and 980 / 1550nm fusion taper pumping optical wave division multiplexer;First wave division multiplexer, second wave division multiplexer all include single-fiber collimator and double-fiber collimator, and optical fiber type is multimode OM3 optical fiber;Double-fiber collimator has one optical fiber as same optical fiber, so that there is no fusion point between first wave division multiplexer, second wave division multiplexer;Another optical fiber of the double-fiber collimator of second wave division multiplexer uses erbium-doped fiber, so that there is no fusion point between second wave division multiplexer, erbium-doped fiber;Fusion taper pumping optical wave division multiplexer is completely made using HI 1060 optical fiber fusion taper process, and 980nm and 1550nm wavelength are separated;Erbium-doped fiber other end is fused with fusion taper wave division multiplexer main end;Remaining optical fiber is used for port output / input.

The invention discloses a unilateral excitation independent dual-polarization beam-forming transmission and reflection integrated array antenna which comprises a high-isolation dual-polarization feed source and a metasurface. The feed source adopts orthogonal I-type slot coupling and double-layer orthogonal feed, and the port isolation is superior to 50dB. According to the dual-polarization feed antenna, the radiation patch is coupled and excited through the orthogonal I-type slot on the grounding plate, and the SMA side feed is coupled through the orthogonal feeder lines above and below the double-layer substrate. The metasurface reflection subsystem is an X-direction bow-tie-shaped multi-layer stack, and the transmission subsystem is a Y-direction oval multi-layer stack. The antenna works in an X wave band, and the frequency bands of the two ports are 9.98 GHz to 10.65 GHz and 9.67 GHz to 10.58 GHz. The excitation reflection gain of the port 1 is 20.2 dBi, and the excitation transmission gain of the port 2 is 20.3 dBi. The antenna has the characteristics of high gain, dual polarization independence, reconfigurable beams in different directions, high isolation and flexible beam regulation and control, and is suitable for systems of multi-beam communication, directional networking and the like.

This invention belongs to the field of wireless communication technology and discloses a dual inverted "L" broadband low-coupling MIMO mobile phone antenna based on a parasitic grounded stub. This invention proposes a novel antenna structure. This design effectively solves the contradiction between broadband performance and high isolation while maintaining a simple and compact structure. The decoupling and broadband principle of this invention is as follows: an inverted L-shaped parasitic grounded stub with a bent end is introduced below the inner side of the radiating arm. This stub can generate a new coupling path, and the reverse current induced in it exactly cancels the coupling current received by the main radiating arm, achieving decoupling between ports. By slotting on the horizontal arm of the inverted L-shaped radiating stub, a new resonant point is generated in the antenna, effectively widening the antenna's operating bandwidth.

The invention belongs to the related technical field of microwave antennas, and discloses a dual-polarized broadband oscillator antenna, which comprises an antenna cavity, a feed support structure, a radiator and a metal floor, and is characterized in that the antenna cavity is of a rectangular metal cavity structure and is used for accommodating the feed support structure and the radiator; symmetrical rectangular protrusions protruding inwards are machined in the center line positions of the four side walls of the box body. The feed support structure comprises two groups of hollow and solid metal tubes which form a mutually orthogonal arrangement form, and each hollow metal tube is internally provided with a radio frequency cable; the radiator comprises two pairs of half-wave oscillators and four parasitic branches, each pair of half-wave oscillators is provided with oscillator arms vertically installed at the top end of the feed supporting structure, and the parasitic branches are arranged on diagonal lines of the adjacent oscillator arms respectively. Compared with an existing product, the antenna has the advantages of being wide in frequency band, high in isolation degree, dual-polarized, stable in radiation performance and the like, and meanwhile the environmental adaptability of the antenna is improved.

The application discloses a high-isolation plastic metalized waveguide slot antenna, which comprises a fixed back plate, a transmitting antenna, a transceiving isolation structure and a receiving antenna arranged on the fixed back plate. The transmitting antenna comprises one waveguide slot antenna unit and is used for transmitting electromagnetic signals. The transceiving isolation structure is arranged between the transmitting antenna and the receiving antenna and is used for inhibiting spatial wave coupling between the transmitting antenna and the receiving antenna. The receiving antenna comprises eight waveguide slot antenna units arranged according to predetermined positions and is used for receiving echo signals of a target. The application has the characteristics of high isolation while ensuring the gain requirement, and has the advantages of light weight and low cost.

The embodiment of the application provides a magneto-electric monopole antenna unit, a magneto-electric monopole antenna array, an antenna and equipment, and belongs to the technical field of wireless communication. The antenna unit comprises a first dielectric substrate, a monopole radiator, a microstrip feed line, a metal reflector plate, a short-circuit metal column and two ground patches. It generates an electric monopole mode through the monopole radiator excitation, and generates a magnetic monopole mode through the short-circuit metal column, the ground patch and the reflector plate, and the two modes work together to realize wideband radiation and widen the beam width. The coupled currents on the two ground patches produce two pairs of opposite electric field components in the far field and offset each other, thereby realizing low cross polarization. The array composed of multiple units is loaded with a metasurface above, which significantly improves the port isolation by introducing a reflection path opposite in phase to the original coupling path. The application solves the technical problem that it is difficult to simultaneously realize wide-angle scanning, low cross polarization and high isolation in a wide frequency band.

The application relates to a high-isolation frequency distribution circuit based on common-base amplification, which comprises a gain control amplifier, a distributor, a common-base amplification network and a filter; the gain control amplifier realizes gain control amplification of an input frequency signal and attenuated input to the distributor; the distributor realizes power distribution and isolation of the frequency signal without additional noise, and realizes multi-way output, each way of output being connected with a common-base amplification network; the common-base amplification network improves the reverse isolation characteristic of the frequency signal through the common-base triode current buffer characteristic, realizes high-isolation between multi-way output frequency signals and inputs the frequency signals to the filter; the filter suppresses the out-of-band noise of the frequency signal to reduce the harmonic and the out-of-band noise of the frequency signal. The application can realize amplification, distribution, isolation and filtering of low-noise frequency signals, improves the integration of the output frequency signal of the time-homogeneous equipment, and has the advantages of high isolation, low additional noise and the like.

The utility model discloses a broadband waveguide bridge with a microstrip probe and a solid-state power amplifier thereof. The solid-state power amplifier comprises a first waveguide bridge assembly, a second waveguide bridge assembly and a waveguide-to-microstrip probe assembly, the first waveguide bridge assembly comprises a C-shaped first waveguide channel assembly and a C-shaped second waveguide channel assembly which are arranged back to back, a plurality of connection coupling parts connected between the first waveguide channel assembly and the second waveguide channel assembly, and coupling windows arranged between the adjacent connection coupling parts; the waveguide-to-microstrip probe assembly comprises a first guided wave-to-microstrip assembly and a second guided wave-to-microstrip assembly which are opposite in mirror image; the first waveguide-to-microstrip assembly comprises a high-order mode suppression cavity, an air cavity, a microstrip probe substrate arranged in the high-order mode suppression cavity and the air cavity, and a probe line, a high-resistance line, an impedance gradient line and a microstrip line which are printed on the microstrip probe substrate and are connected in sequence. The utility model has the advantages of simple structure, high isolation, good port matching, low loss and the like.