342 results about "Duplexer" patented technology

A duplexer including a support substrate, a reception signal terminal, a transmit signal terminal, an antenna terminal, a receive side filter formed on the support substrate and electrically coupling the reception signal terminal to the antenna terminal, a transmit side filter formed on the support substrate and electrically coupling the transmit signal terminal to the antenna terminal, a side wall surrounding the receive side filter and the transmit side filter, and a cap wafer disposed on the side wall and enclosing the receive side filter and the transmit side filter in a cavity defined by the cap wafer, the side wall, and the support substrate, there being no post disposed on the antenna terminal and in contact with the cap wafer.

The utility model relates to the technical field of duplexer protection structures, and discloses a radio frequency duplexer connection protection structure which is applied to a duplexer body, a lower fixed protection bin is fixed below the right side of the duplexer body, and abutting columns are elastically installed on the front portion and the rear portion of the interior of the right side of the lower fixed protection bin. Clamping grooves are formed in the front portion and the rear portion of the interior of the right side of the lower fixed protection bin, an upper movable protection bin used for being sealed with the lower fixed protection bin is hinged to the right side of the duplexer body, the upper movable protection bin is in extrusion fit with the abutting column, and elastic clamping pieces are fixed to the positions, matched with the clamping grooves, of the upper movable protection bin. And the elastic clamping piece is clamped in the clamping groove, so that the joint of the duplexer body and the connecting line can be better protected through the cooperation of the lower fixed protection bin and the upper movable protection bin, and meanwhile, the stability of the joint of the duplexer body and the connecting line in use is improved.

The invention provides a dielectric waveguide filter, a construction method and a dielectric waveguide duplexer. The construction method of the dielectric waveguide filter comprises the following steps: selecting a dielectric material based on a given target passband index; establishing a matrix four-mode dielectric waveguide resonator, and adjusting the size of a rectangular dielectric waveguide to enable the resonant mode frequency to reach a target frequency band; carrying out electromagnetic field distribution analysis on a single four-mode dielectric waveguide resonator with a set size, positioning the distribution position of a resonance mode according to the distribution condition of an electromagnetic field, and respectively embedding four blind holes in the position where the electromagnetic field is strongest in distribution so as to realize polarization fixation and frequency regulation and control on the resonance mode; selecting a coupling topology to construct a dielectric filter based on frequency regulation and control of the four-mode dielectric waveguide resonator; the additional coupling blind holes are added on the basis of the coupling topological structure so as to regulate and control the mutual coupling between the adjacent resonators. According to the technical scheme, the problem that the size of a filter in the prior art is large is effectively solved.

The invention provides a shipborne relay vertical omnidirectional communication array antenna, which relates to the technical field of wireless communication and comprises a base, a low-frequency printed substrate and two high-frequency printed substrates, a plurality of low-frequency dipole units and second phase guider coupling units are arranged on the two surfaces of the low-frequency printed substrate in an array manner, and the low-frequency dipole units form an array through a combiner; a plurality of high-frequency dipole subunits and first phase guider coupling units are arranged on the two surfaces of the high-frequency printed substrate in an array manner, and each high-frequency dipole subunit outputs through a parallel connection network; the low-frequency printed substrate and one group of high-frequency signals are connected with one antenna port of the 5G communication module through the duplexer combiner, and the other group of high-frequency signals are independently output and connected with the other antenna port of the 5G communication module. The dipole unit adopts a parallel feed array, so that the gain of the antenna in the horizontal direction is improved, and the omnidirectional coverage area and gain of the antenna are increased in a turning manner; and the phase guider coupling unit beside the dipole unit improves the out-of-roundness of the antenna.

The invention provides an unmanned aerial vehicle electromagnetic interference positioning method and system, and relates to the technical field of unmanned aerial vehicles, and the method comprises the steps: 1, carrying out the broadband frequency spectrum scanning of a remote control link frequency band, a telemetering link frequency band and an image transmission frequency band at the full flight stage of an unmanned aerial vehicle, detecting an interference signal in a frequency hopping communication system in real time, and transmitting the interference signal to an unmanned aerial vehicle; identifying random hopping frequency conversion points covered by the interference signals to form a hopping frequency conversion point set; and step 2, inputting the hopping frequency point set into a radio frequency sharing front end, coupling a radio frequency signal of a communication antenna to a spectrum analysis unit through a duplexer, and performing signal compensation on a coupling path by utilizing automatic gain control and a phase equalizer to obtain corrected interference spectrum data. The anti-interference capability and the flight safety of the unmanned aerial vehicle in a complex electromagnetic environment are improved, and the avoidance path is generated to guarantee the safe flight of the unmanned aerial vehicle.

The invention provides a same-time same-frequency-band full duplex communication device with rapid and agile frequency. Comprising a duplexer, a first frequency hopping wave trap, a first radio frequency amplifier, a first frequency hopping filter, a second frequency hopping wave trap, a second radio frequency amplifier, a second frequency hopping filter, a third radio frequency amplifier, a band-pass filter, an analog-to-digital converter, a standard frequency, a channel controller, a baseband processor, a digital-to-analog converter, a fourth radio frequency amplifier and a third frequency hopping filter. A fifth radio frequency amplifier; and a fourth frequency hopping filter. According to the simultaneous same-frequency-band full-duplex communication device with the fast and agile frequency, the working frequency of the full-duplex communication device covers 100 MHz to 1 GHz, the frequency range is wide, the communication efficiency is high, time delay is small, self-interference generated by a local transmitter is effectively restrained, application of a full-duplex communication system in the wide-frequency-band simultaneous same-frequency-band high-speed frequency hopping process can be met, and the full-duplex communication device is suitable for wide-frequency-band simultaneous same-frequency-band high-speed frequency hopping. The transceiving isolation of the system duplexer is greater than 30dBc, and the notch suppression capability of the receiving path is greater than 65dBc.

The invention relates to the technical field of bulk acoustic wave resonators, and particularly provides a temperature compensation type bulk acoustic wave resonator, a preparation method thereof and a duplexer, the temperature compensation type bulk acoustic wave resonator comprises a substrate, a bottom electrode, a piezoelectric layer, a top electrode and a temperature compensation layer which are sequentially connected from bottom to top, the substrate is provided with an acoustic reflector, and the temperature compensation layer is provided with a dielectric layer. The temperature drift coefficient of the temperature compensation layer is smaller than that of the piezoelectric layer, the temperature compensation layer comprises a first compensation part, and the boundary of the projection of the first compensation part in the overlook direction is located in the boundary of the projection of the acoustic reflector in the overlook direction; the temperature compensation type bulk acoustic wave resonator can effectively solve the problem that the resonant frequency of the bulk acoustic wave resonator is easily influenced by the temperature change due to the fact that the material characteristic of the piezoelectric layer shifts along with the temperature change.

The disclosed front end architectures are configured to conglomerate duplexer transmission (TX) contours into a specific or targeted region. This enables the power amplifier (PA) to match a larger number of frequency bands without the help of additional matching networks. The disclosed architectures are advantageous because they reduce the number of components (e.g., surface mount technology components (SMTs)) required for radio-frequency (RF) modules, such as front end modules, power amplifier modules, and the like. The disclosed architectures are also advantageous because they improve performance of the modules across a wider range of frequency bands.

The invention discloses a multi-band CTS antenna, comprising a feeding network, a multiplexing network and a radiating unit stacked from bottom to top, wherein the feeding network comprises a first metal plate, a second metal plate, four line sources, a first input port, a second input port and a third input port, the multiplexing network comprises a third metal plate and three duplexers, the third duplexer comprises a first low-pass filter, a first band-stop filter and a first E-plane power divider, the second duplexer comprises a second low-pass filter, a second band-stop filter and a second E-plane power divider, the first duplexer comprises a third low-pass filter, a third band-stop filter and a third E-plane power divider, and the radiating unit comprises a fourth metal plate, a fifth metal plate, two one-to-eight power dividers with consistent structures and parameters and sixteen CTS radiating slots with consistent structures and parameters; the antenna has the advantage of being able to cover K-band, Ka-band and Ku-band at the same time, and having high applicability in communication environment.

A method for reducing receive band leakage may include: sensing, at a full duplexer, passive intermodulation distortion and power amplifier distortion; generating, at a processing device, a passive intermodulation distortion and power amplifier distortion cancellation signal; and cancelling, on a receive path, the passive intermodulation distortion and power amplifier distortion using the passive intermodulation distortion and power amplifier distortion cancellation signal.

The invention relates to the technical field of optical communication, in particular to a single-fiber bidirectional device with specific wave band reflection and an optical module thereof, comprising a transmitting TO-CAN, a receiving TO-CAN, an integrated tube and a tail fiber pin, the transmitting TO-CAN1 is coupled with one end of the integrated tube, the receiving TO-CAN1 is coupled with the side surface of the integrated tube, and the tail end of a tail fiber of the tail fiber pin is coupled with the other end of the integrated tube; a beam splitter and an optical filter are arranged at the central axis part of the integrated tube; the beam splitter is used for reflecting light returned from the tail fiber pin into the receiving TO-CAN; the optical filter is arranged at a light inlet of the receiving TO-CAN; a grating fiber core is arranged in the tail fiber pin, the grating fiber core is located at the tail end of the tail fiber pin, and the grating fiber core is used for reflecting light with a specific wavelength in an optical signal sent by the transmitting TO-CAN into a receiving TO-CAN.

A multi-frequency OMT system comprises an OMT, the upper portion of the OMT comprises an OMT input end, and the lower portion of the OMT comprises a first output end and a second output end. The first duplexer is positioned below the OMT, the upper part of the first duplexer comprises a first input end, the lower part of the first duplexer comprises a first high-frequency output end and a first low-frequency output end, and the first output end is connected with the first input end; the second duplexer is located below the OMT, the upper portion of the second duplexer comprises a second input end, the lower portion of the second duplexer comprises a second high-frequency output end and a second low-frequency output end, and the second output end is connected with the second input end. Through reasonable arrangement of component structures and frequency division of dual-polarized antenna signals, the purpose that a pair of antennas of a single-hop link perform four-group transceiving at the same time is achieved, meanwhile, high-power and high-capacity communication technology requirements are met, spectrum resources and iron tower resources are saved, the utilization rate of microwave antennas is increased, and the cost is reduced. And the method is suitable for mass production.

The invention discloses a frequency duplex synthesis method for realizing a terahertz ultra-wideband frequency multiplier, and relates to the technical field of submillimeter wave / terahertz solid-state frequency multipliers, a'frequency division-frequency multiplication-frequency combination 'duplex circuit architecture is adopted, a frequency division circuit and a frequency combination circuit are both based on a hybrid network type waveguide duplexer design, and the frequency division-frequency multiplication-frequency combination duplex circuit design is adopted. The frequency multiplier circuit is realized by adopting a hybrid integrated frequency doubler, the cost is low, the cavity structure is completely processed by adopting a CNC milling process, and the solid-state characteristic is realized; therefore, under the condition that the frequency doubling / frequency conversion efficiency is not reduced, the frequency doubler capable of covering the full frequency band of 170-260GHz (WR-4 frequency band) can be realized, namely, the double advantages of wide frequency band and high efficiency of the frequency doubler are considered, and the technical problem that the wide frequency band and the high efficiency of a submillimeter wave / terahertz schottky frequency doubler at the present stage cannot be achieved at the same time is solved.

A communication circuit includes a transmission terminal to which a transmission signal is supplied, a first duplexer that has a transmission node, a reception node, and a common node, a first filter that has a first end part electrically connected to the common node of the first duplexer and a second end part electrically connected to an antenna terminal, a first auxiliary output terminal that outputs the transmission signal to an external circuit, an inductor that is part of a second filter and has a first end part and a second end part that is electrically connected to the first auxiliary output terminal, and a first switch that switches the electrical connection destination of the transmission terminal between the transmission node of the first duplexer and the first end part of the inductor.

The present invention discloses a non-magnetic simultaneous transmit and receive (STAR) duplexer for terahertz communication and sensing integration, which includes a dielectric substrate, a microstrip stepped impedance filter, varactor diodes, terahertz signal input / output ports, modulation signal input ports, ground ports, and a Y-shaped microstrip transmission line connection. Through the design of distributed parameter circuits, the present invention overcomes the problem of mismatch of the non-magnetic STAR duplexer with lumped parameter circuits at high frequencies. The main structure of the present invention is composed of a microstrip circuit. The ports connecting the external modulation signal and the ground port include lumped element filters. The overall structure is simple and easy to process and integrate.

The invention discloses a dynamic parameter testing system and method for a bidirectional TVS device, and relates to the technical field of parameter testing, a specific miniature assistance unit is dynamically generated for each group of dynamic parameter data groups to be tested, and the corresponding dynamic parameter data groups are received through an introduction port; identifying interference data of the dynamic parameter data group by using an inspection mechanism of the micro assistance unit and discharging the interference data; simulation test events in the twin model are injected into the miniature assistance unit, low-quality data in the dynamic parameter data group are discharged through interaction of the simulation test events, and when the number of times of interaction reaches a preset threshold value, the miniature assistance unit is input into an actual test environment; and carrying out dynamic parameter test on the bidirectional TVS device by using the residual dynamic parameter data group carried by the micro assistance unit, and outputting effective test data through an output port. The problem that dynamic parameter measurement is inaccurate due to low data quality, environmental interference and incomplete test coverage in a traditional test method is solved.

The invention discloses a millimeter wave communication antenna broadband feed source network four-port device and an application method thereof, and relates to the technical field of microwave communication, the millimeter wave communication antenna broadband feed source network four-port device comprises a circular rectangular transition structure, a circular polarizer and an orthogonal mode coupling duplexer assembly which are integrated in sequence; the circular rectangular transition structure is used for corresponding conversion transition between the standard rectangular waveguide and the circular waveguide; the circular polarizer is provided with an orthogonal stepped ridge, so as to convert the circularly polarized wave into an orthogonal linearly polarized wave or convert the orthogonal linearly polarized wave into the circularly polarized wave corresponding to the signal receiving and transmitting direction; the orthogonal mode coupling diplexer assembly is used for separating the two paths of orthogonal linear polarized waves in the synthetic state or synthesizing the two paths of orthogonal linear polarized waves in the separated state corresponding to the signal receiving and transmitting direction, and can screen signals passing through a specific receiving and transmitting frequency band. The technical problems that in the prior art, a dual-polarized antenna technology for dual-channel communication is large in size, complex in structure and high in cost, and the overall performance is difficult to meet expected requirements are solved.

The application discloses a kind of compatible signal processing devices of measurement and control communication navigation, it is related to satellite measurement and control communication technical field.The device includes measurement and control mobile communication navigation signal access circuit, measurement and control communication navigation signal processing circuit, radio frequency transmitting signal amplification and receiving signal low noise amplification circuit, duplexer circuit, antenna circuit, power supply circuit.The device of the application measurement and control communication navigation signal processing unit and radio frequency antenna unit adopt one line pass interface, support integrated installation, also support radio frequency antenna unit external installation mode.The application adopts radio frequency unit and duplexer joint design, the isolation of transceiver channel interval is high, can guarantee the reliable reception of low-speed low-frequency spectral density measurement and control signal.The application adopts modular design, high degree of integration, the whole machine debugging workload is small, stable and reliable performance, interface is simple and flexible, simple structure.

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 provides a three-mode dielectric resonator which comprises a dielectric block, the dielectric block is provided with a pair of first resonant blind holes, a pair of second resonant blind holes and a third resonant blind hole, the first resonant blind holes are arranged along a first diagonal direction of the dielectric block and used for forming a first resonant mode, and the second resonant blind holes are arranged along a second diagonal direction of the dielectric block and used for forming a third resonant mode. The pair of second resonance blind holes are arranged along a second diagonal direction of the dielectric block and are used for forming a second resonance mode, the third resonance blind holes are used for forming a third resonance mode, and the first diagonal direction and the second diagonal direction intersect with each other. The invention also provides a dielectric waveguide filter and a dielectric waveguide duplexer using the resonator unit. When the resonator unit is used for designing a dielectric waveguide filter, a three-mode waveguide structure with independently adjustable resonant modes is realized, multiple resonant modes are realized under the same volume, the overall Q value benefit is achieved, and the resonator unit has the advantages of miniaturization and high Q value benefit.

The invention discloses a communication method and device, a terminal, network side equipment and a medium, and belongs to the technical field of communication, and the communication method comprises the steps that the terminal sends or receives signals through M radio frequency links, each radio frequency link comprises at least one power amplifier, the duplexer or the band-pass filter is connected with the at least one power amplifier, the different radio frequency links are used for sending or receiving signals in different frequency ranges in the same frequency band, and M is an integer larger than 1; and the terminal sends a first signaling to the network side equipment, wherein the first signaling comprises information of a frequency range covered by a radio frequency link of the terminal and working mode information of the terminal on the radio frequency link.

The present application provides a resonator, filter, duplexer, multiplexer and communication device, the resonator comprises a resonant cavity, the resonant cavity has a resonant cavity and an open end, the resonator further comprises a deformed cover plate covering the open end and connected with the resonant cavity, a resonant tube located in the resonant cavity, and an adjusting mechanism arranged on the deformed cover plate, a groove is formed on the side of the deformed cover plate away from the resonant cavity, the adjusting mechanism is arranged in the groove and is used to provide a force in the axial direction of the resonant tube, so that the bottom of the groove is continuously deformed to adjust the distance between the deformed cover plate and the resonant tube. The present application can improve the intermodulation performance and high-power performance of the product, and at the same time, the production pass rate of the product can be improved, the product scrap rate and maintenance cost can be reduced, and the market competitiveness of the product can be improved.

The invention relates to a multi-antenna WIFI (Wireless Fidelity) module without a duplexer. The multi-antenna WIFI module without the duplexer comprises a substrate, a Bluetooth unit, a first wireless unit and a second wireless unit, the Bluetooth unit is arranged on the substrate; the first wireless unit is located on one side of the Bluetooth unit, the first wireless unit comprises a first radio frequency circuit and a second radio frequency circuit, the first radio frequency circuit and the second radio frequency circuit are both arranged on the substrate, and an interval is arranged between the first radio frequency circuit and the second radio frequency circuit; the second wireless unit is located on one side of the Bluetooth unit, the second wireless unit comprises a third radio frequency circuit and a fourth radio frequency circuit, the third radio frequency circuit and the fourth radio frequency circuit are both arranged on the substrate, and a gap is formed between the third radio frequency circuit and the fourth radio frequency circuit. According to the scheme provided by the invention, a duplexer can be abandoned, so that the circuit design is simplified, and the design cost is reduced.

This invention relates to the field of radio frequency device design optimization technology, and provides an AI-based duplexer design optimization method and system. The method includes: predicting the event frequency characteristics of the future application environment; determining a correction factor based on the magnitude of the exceedance when the event frequency exceeds a threshold; correcting the key structural parameters of the duplexer to be designed based on the correction factor; and completing the duplexer design based on the corrected key structural parameters. Compared to existing methods that rely solely on experience or a single indicator for design, this invention achieves closed-loop optimization from identifying additional environmental factors to adaptive parameter adjustment, exhibiting higher accuracy and foresight, while avoiding the cost increase caused by over-design, and significantly improving the duplexer's adaptability and long-term reliability in complex environments.

The utility model relates to a filter circuit, a dielectric filter and a duplexer, and the filter circuit comprises a signal input end which is used for inputting a signal; the signal output end is used for outputting a signal; the resonance unit comprises a plurality of resonance circuits which are sequentially arranged between the signal input end and the signal output end in parallel; the coupling inductor unit is arranged between the signal input end and the grounding end and between the signal output end and the grounding end, and the coupling capacitor unit is arranged between the signal input end and the first resonance circuit and between the signal output end and the last resonance circuit. According to the utility model, the problem of large return loss in an ultra-wide passband can be solved, standing waves are effectively improved, the working efficiency of the filter is improved, and the communication effect is improved. The dielectric filter is connected with the grounding silver layer on the outer surface of the ceramic substrate through leading out a first connecting line and a second connecting line from the input port and the output port respectively, and plays a role of equivalent inductance.

This utility model discloses an easy-to-install duplexer, belonging to the field of duplexer technology, aiming to solve the problem of the extremely difficult disassembly process when the duplexer needs maintenance due to equipment failure in existing technologies. It includes a duplexer body and a mounting plate. The mounting plate is located at the bottom of the duplexer body, and a connecting block protrudes from the bottom of the duplexer body. The connecting block is detachably connected to the mounting plate. An installation hole is opened inside the mounting plate near the side, and a drive rod is slidably installed in the installation hole. A drive block is fixed to the portion of the drive rod located deep within the installation hole, and a first spring is installed on the drive block, which is fixedly connected to the inner wall of the installation hole. A pressing block is fixedly connected to the rod body portion of the drive rod located inside the installation hole. A movable block is provided on the sliding path of the pressing block, and a locking rod is fixedly connected to the other side of the movable block. This easy-to-install duplexer eliminates the need for complex professional tools, reducing the difficulty and threshold of installation.

The present invention relates to the field of circulator technology, in particular to the field of IPC H04B, and more specifically to a method for manufacturing a ceramic composite silicon-based circulator and its application. The present invention obtains a ceramic composite silicon-based circulator by cutting through eight steps: deep silicon etching through holes, making ferrite discs, preparing composite substrates, making dielectric bridges, photolithography patterns, vacuum coating, photoresist stripping, and scribing and slicing. The present invention adopts a silicon wafer commonly used in semiconductor technology, embeds a ferrite ceramic disc in the middle of each silicon wafer through hole, connects them into a completed circuit substrate substrate through a specific adhesive material, and then manufactures a microstrip circulator through a semiconductor thin film process. Dielectric bridge metallization technology is used at the connection between the two materials to ensure the continuity and reliability of the circuit connection. The circulator has a wide operating frequency band, high power resistance, good consistency, easy integration, and low cost. It is very suitable for use in isolators, duplexers, reflection amplifiers and other fields.

The invention relates to a surface acoustic wave resonance device, a filter, and a duplexer or multiplexer. The surface acoustic wave resonance device includes: a piezoelectric layer; the at least two resonance units are arranged on the surface of the piezoelectric layer, each resonance unit comprises an interdigital electrode and reflection structures located on the two sides of the interdigital electrode in the propagation direction of the surface acoustic wave, and the at least two resonance units are connected in parallel; and the phases of the surface acoustic wave signals corresponding to the at least two resonance units are the same. In the embodiment of the invention, the at least two resonance units are connected in parallel, and the phases of the corresponding surface acoustic wave signals are the same, so that the transverse wave modes of different resonance units can be mutually suppressed, and the transverse wave suppression effect of the surface acoustic wave resonance device is improved.

The present invention discloses a compact waveguide duplexer for the W-band, comprising: a first dual-mode resonator connected to the waveguide input port, a second dual-mode resonator connected to the first waveguide output port, and a third dual-mode resonator connected to the second waveguide output port; the first dual-mode resonator is connected to the second dual-mode resonator through a first single-mode resonator and a second single-mode resonator operating in the first passband; the first dual-mode resonator is connected to the third dual-mode resonator through a third single-mode resonator and a fourth single-mode resonator operating in the second passband; the first to third dual-mode resonators are TE 301 / TE 102 -mode resonators; the first to fourth single-mode resonators are TE 101 -mode resonators. In the present invention, a dual-mode resonator based on a higher-order mode is used as a T-junction to connect the two passbands of the duplexer, reducing the footprint of the duplexer, improving the performance, having a simple structure, and being easily extended to higher frequency bands.