115 results about "Duplexer" patented technology

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 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.

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 application discloses a C-band tuning-free duplexer and belongs to the technical field of microwave filters. The tuning-free duplexer comprises an upper conductor and a lower conductor, and the upper conductor and the lower conductor are buckled one above the other to form a waveguide cavity. The upper conductor is provided with a combining port in the middle of the top, and the lower conductor is provided with a low-frequency input / output port and a high-frequency input / output port at the bottom. The waveguide cavity from the low-frequency input / output port to the combining port constitutes a low-end filter, and the waveguide cavity from the high-frequency input / output port to the combining port constitutes a high-end filter. The main bodies of the high-end filter and the low-end filter are both a plurality of waveguide resonant cavities arranged along a straight line, the middle positions of each waveguide resonant cavity are provided with cavity loading, and adjacent waveguide resonant cavities are connected through inter-cavity coupling. The tuning-free duplexer adopts a symmetrical structure and a center loading mode, realizes tuning-free assembly, has the characteristics of high power bearing capacity, low transmission loss and excellent signal isolation, and is suitable for a C-band communication system.

A terminal device and a control method. The terminal device includes a power amplifier, a first circuit, a second circuit, a first antenna, a second antenna, a first frequency division switch, and a second frequency division switch; the first circuit includes N duplexers, and the second circuit includes M duplexers; the first frequency division switch includes N first output terminals, and the second frequency division switch includes M output terminals; the first antenna is connected to the first circuit, and the second antenna is connected to the second circuit; and the power amplifier is configured to access the first circuit to support the first antenna to send a signal, or access the second circuit to support the second antenna to send a signal.

This invention discloses a linear multi-zero cavity duplexer based on a hybrid resonator. The duplexer comprises a rectangular hollow metal cavity, a common signal terminal at the top of the cavity, and two signal branches on either side. The branches employ a hybrid cascaded structure of single-mode and dual-mode metal resonators, forming a linear topology without cross-coupling. The dual-mode metal resonator can operate simultaneously in inter-plate coupling mode and coaxial mode. The resonant mode order is set by pre-setting the internal inter-plate distance, allowing each branch to generate two preset transmission zeros. This invention achieves a six-pole filtering response using only four resonant cavities, forming a dual passband and generating four preset transmission zeros, ensuring high quality factor and high channel isolation while achieving device miniaturization. This invention features a simple structure, easy fabrication, and independently and precisely adjustable coupling parameters, making it suitable for 5G / 6G communication, emergency communication, and UAV-borne high-performance miniaturized RF front-end applications.

A radiofrequency (RF) system may comprise a duplexer or multiplexer, e.g., when the transmitted signal frequency is different from the receiving frequency in a RF communication system, a duplexer may combine the transmitter and the receiver into the same antenna. In other possible RF communication systems, where the transmit (Tx) and receive (Rx) paths utilize the same frequencies (which are duplexed in time domain), a multiplexer may be used to connect different transmitters, receivers and / or transceivers that are using different frequencies, into one common / antenna port. A multiplexer may be used to share an antenna between multiple transceivers at different frequencies. In some embodiments, the multiplexer may be tunable to different frequencies during operation.

A communication device includes a duplexer differentially coupled to a receiver and a transmitter. The duplexer may include phase shifters on the differential lines to provide differential received signals to the receiver and receive differential transmission signals from the transmitter for transmission. For example, the phase shifter are positioned such that single-ended received signals may be converted to differential received signals and convert the differential transmission signals to single-ended transmission signals for transmission. Moreover, the phase shifters may provide the single-ended transmission signals to antennas for transmission and to the differential lines of the receiver for cancellation / isolation. Furthermore, the phase shifters may provide the differential received signals to the receiver for reception and provide the single-ended received signals to the differential lines of the transmitter for cancellation / isolation. Accordingly, the duplexer may convey communication signal while reducing signal interference by providing improved isolation.

The invention relates to a satellite-borne multi-carrier broadband dispersion transmitting link system and a digital pre-distortion compensation method. The system comprises a joint predistortion actuator unit, a JESD204 interface module, an RFSoC module, a multi-carrier transmitting channel, a first multiplexer, a second multiplexer, a high-speed data acquisition module, a soft core computing unit, a refreshing and reconstructing unit, a parameter read-write module and a power amplifier working point control and switch selection module. According to the invention, a joint pre-distortion actuator unit is adopted at a transmitting end to eliminate group delay distortion and imbalance influence in a satellite-borne transmitting link. Meanwhile, on the basis of compensating linear distortion, a GMP model is realized at a transmitting end based on a lookup table structure and is used for compensating the strong nonlinearity and memory characteristics of the power amplifier, and the modeling precision of the satellite power amplifier is improved. According to the invention, the vector amplitude error of the constellation diagram can be improved, the design reserved protection bandwidth between adjacent carriers of the last-stage duplexer can be reduced, and the frequency band utilization rate can be improved.

In a low-pass filter, attenuation characteristics are improved without increasing the size of the device. The low-pass filter includes a laminate in which a plurality of dielectric layers are stacked in a stacking direction; an antenna terminal, a terminal, and a ground terminal disposed in the laminate; resonators; capacitors; and an adjustment circuit. The resonators are connected to the input terminal. The resonators are connected between the resonators and the output terminal. The capacitors are connected between a connection node between the resonators and the ground terminal. The adjustment circuit adjusts coupling between the resonators. Each resonator is an LC parallel resonant circuit including a capacitor and an inductor having a via extending in the stacking direction. The adjustment circuit includes a via connected at one end to the ground terminal. In a case where the laminate is viewed from above in the stacking direction, the via is disposed along the via in a region between the via of the resonator and the via of the resonator.

The application discloses a kind of duplexers and communication equipment.The duplexer includes the transmitting filter and the receiving filter formed by bulk acoustic wave resonator, and the duplexer includes stacked first wafer and second wafer, the first surface of first wafer and the second surface of second wafer are opposite, wherein, the series resonator of transmitting filter is located at the first side of first surface;Parallel resonator of receiving filter is located at the second side of first surface;Parallel resonator of transmitting filter is located at the first side of second surface;Series resonator of receiving filter is located at the second side of second surface.The duplexer can make full use of space, so as to reduce the size of duplexer, save manufacturing cost.The duplexer in the embodiment of the application can also improve the band roll-off, insertion loss and isolation of duplexer.

The invention provides a communication device and a communication method. The communication device provided by the invention comprises a transmitting module, a receiving module, a first duplexer, a second duplexer and a switch module, the first duplexer is used for isolating a signal of a first sub-band and a signal of a second sub-band, the second duplexer is used for isolating a signal of the second sub-band and a signal of a third sub-band, and the switch module is used for switching the first sub-band and the second sub-band. The switch module enables the transmitting module and the receiving module to be respectively connected with the first duplexer or the second duplexer by controlling the switching of the connection modes, thereby enabling the communication device to isolate the interference between an uplink signal and a downlink signal, cooperating with network equipment to realize SBFD system scheduling, and improving the network performance of a wireless communication system.

The invention mainly relates to a method for testing and calibrating amplitude-phase consistency of receiving and transmitting channels of a spherical phased array in the field of radar and communication. Comprising the following steps: constructing an amplitude-phase consistency wireless test network by using external measurement antennas distributed on an antenna housing of a spherical phased array, a measurement antenna switching unit, a duplexer, a local oscillator module, a frequency converter, test switch equipment, a vector network analyzer and the like, and dividing an array plane according to the measurement antennas; amplitude and phase testing is carried out on full-array-plane transmitting-receiving channels in a regional mode, amplitude and phase values of all transmitting-receiving channels are obtained, the first amplitude and phase measurement result serves as a zero value reference to be stored, an array plane is measured regularly and compared with amplitude and phase initial zero value reference, and according to the amplitude and phase relative change difference value, the amplitude and phase values of all transmitting-receiving channels are obtained. And correcting and calibrating the consistency of the transmitting and receiving channels. The method is suitable for daily test calibration and stability monitoring of consistency of transmitting and receiving channels of a three-dimensional array plane phased array system such as a spherical surface.

The present disclosure relates to a diplexer with an impedance inverter. The diplexer can be used to isolate a transmitter and a receiver that share a common antenna. The diplexer is balanced by using an impedance gradient that provides an impedance that causes a balun of the diplexer to cut off access to the common antenna rather than replicate the antenna impedance. Such a cut off can have lower insertion loss than a diplexer that replicates the antenna impedance only to separate differential signals and common mode signals of the receiver and transmitter.

The invention relates to the technical field of radio frequency microwave circuits, and discloses a compact waveguide-microstrip duplexer which comprises a first rectangular waveguide, a second rectangular waveguide and a dielectric substrate circuit. The first rectangular waveguide forms an input channel of an electromagnetic wave signal. The second rectangular waveguide terminal is short-circuited. And the dielectric substrate is placed at a cross section position where waveguide ports of the first rectangular waveguide and the second rectangular waveguide are accurately and tightly butted. On a dielectric substrate located in an internal area of a rectangular waveguide, circuits with narrow-band frequency excitation coupling output characteristics for input signals are manufactured on the two faces of the substrate respectively, and band-pass filters with corresponding pass bands are manufactured on output band lines of excited signals. Two excitation signals of the duplexer penetrate out of the metal outer wall of the rectangular waveguide, and before the microstrip line serves as an output interface, the coupling and filtering integrated function of the input signals is achieved inside the input rectangular waveguide, and the duplexer has the advantage of being compact in overall circuit structure.

The utility model discloses a repeater with a waterproof and dustproof structure, which comprises a power supply part and a control part which are connected in a covering manner. The control part cover plate is provided with a first open slot with a step, a sealing ring is embedded in the first open slot, and a main control unit, and a signal acquisition unit, a duplexer module and the like electrically connected with the main control unit are arranged in the slot; a power supply part box body is provided with a connecting hole and a screw hole, and a cover plate is connected with the box body through a hinge and is locked by a screw to be matched with a sealing ring to realize sealing. The box body is provided with a lattice flange joint, a conversion terminal strip, a power supply module, a control module, an anti-surge module and other components. The main control unit is an ARM chip main control unit and comprises a WIFI module, and the box body and the cover plate are made of metal explosion-proof materials. Through unique structural design, the repeater realizes waterproof, dustproof and explosion-proof functions, can effectively acquire and process signals and convert a stable power supply, has the capabilities of data processing display, wireless communication and surge protection, is convenient to maintain and overhaul, and is suitable for various complex environments.

The invention discloses a satellite navigation signal emission radio frequency circuit, which comprises a radio frequency emission channel circuit, a synthesis circuit and a power supply circuit, and is characterized in that the radio frequency emission channel circuit comprises a first amplifier, a first attenuator, a second amplifier, a first band-pass filter, a second attenuator and a power amplifier which are connected in sequence; the synthesis circuit comprises an antenna interface, a feed network and a duplexer; the power supply circuit comprises a voltage-stabilized power supply, a current-limiting branch and an energy-storage capacitor; the power amplifier is electrically connected with the duplexer, and the feed network is electrically connected with the voltage-stabilized power supply and the current-limiting branch. Through the circuit, the radio frequency gain of a transmitting channel can be realized, and the requirement of instantaneous transmitting power on power supply of a power supply is met.

The utility model discloses a Ku wave band duplexer, which comprises a main cavity, and is characterized in that the main cavity is a rectangular box body, a public port is arranged on the main cavity, a public coupling block is arranged at the position of the public port corresponding to a cover plate, and the public coupling block can shunt signals coupled by the public port to a transmitting channel and a receiving channel. The transmitting end and the receiving end of the duplexer realize a coaxial interface; according to the utility model, through the internal structure of the main cavity, the transmitting end and the receiving end of the duplexer are coaxial interfaces under the condition that the size of the Ku wave band duplexer is the same, so that a waveguide coaxial converter is omitted, parts applied to a communication system are reduced, and the working efficiency is improved.

A radio-frequency circuit includes an antenna connection terminal, switch circuits, a duplexer, a low-pass filter, and a high-pass filter. The switch circuit includes a port connected to the antenna connection terminal and ports. The switch circuit includes a single transmission port connected to the port, a simultaneous transmission port connected to ports. The duplexer is connected to the port. The low-pass filter is disposed on a signal path connecting the port and the simultaneous transmission port. The high-pass filter is connected to the port. No filter is disposed on a signal path connecting the port and the single transmission port.

The present application discloses a bulk acoustic wave filter and a duplexer. The bulk acoustic wave filter comprises an input terminal, an output terminal, first-type resonators and second-type resonators; the first-type resonators are arranged in series between the input terminal and the output terminal; one end of each second-type resonator is connected between the input terminal and the output terminal and the other end thereof is grounded; a first resonator, a first sub-resonator, and a second sub-resonator each comprise a bottom electrode, a piezoelectric layer, a top electrode, and a boundary loop structure; along the thickness direction of the bulk acoustic wave filter, the boundary loop structure overlaps the edge of the top electrode; and the thickness of the boundary loop structure in the first resonator is different from the thickness of the boundary loop structure in the first sub-resonator, and is different from the thickness of the boundary loop structure in the second sub-resonator. By means of the technical means, by setting the thicknesses of boundary loop structures in different types of resonators, out-of-band rejection can be improved and the performance of bulk acoustic wave filters can be improved.

One or more systems use a serial group ID address for an automatically tunable antenna. The system may include at least one antenna and one or more tuners. The system may also include one or more identical antennas, and each antenna includes at least two tuners and / or each antenna includes three or more tuners. One or more methods provide one or more tuners, one or more impedance tuners, one or more aperture tuners, provide a radio frequency (RF) multiplexer, and provide an RF duplexer, provide a connection hub module, provide one or more cables, provide one or more components. A connection hub module (CHM) sends commands for which RF bands are moved and to which impedance tuner and / or aperture tuner states are moved. Each tuner may operate on the same serial group ID or one or more serial group IDs.

The duplexers disclosed by the embodiments of the present application comprise a transmitting filter and a receiving filter formed on the same substrate, and the transmitting filter and the receiving filter comprise a plurality of film layers forming a laminated structure, wherein the piezoelectric layers of the transmitting filter and the receiving filter are doped with elements, and the longitudinal wave speed of the piezoelectric layer of the transmitting filter along the thickness direction is less than the longitudinal wave speed of the piezoelectric layer of the receiving filter along the thickness direction. The embodiments of the present application also disclose a manufacturing method of the duplexers and an electronic device. By making the longitudinal wave speed of the piezoelectric layer of the transmitting filter along the thickness direction less than the longitudinal wave speed of the piezoelectric layer of the receiving filter along the thickness direction, the power capacity of the transmitting filter is ensured, and the size is reduced and the cost is lowered as much as possible.

The invention belongs to the field of wireless communication, and particularly provides an on-chip integrated electronic balance duplexer, so that the duplexer can simultaneously transmit and receive at the same frequency, and the limitation that a traditional duplexer needs to work at different frequency bands is eliminated. The electronic balance duplexer is composed of switches SW1-SW4, a transformer and an RC impedance tuning module. A primary coil of the transformer is connected with a differential signal output by the TX circuit, one end of a secondary coil of the transformer is connected with an antenna through a switch SW1, the other end of the secondary coil of the transformer is grounded through a switch SW4, and meanwhile, the grounding end of the secondary coil of the transformer is connected with an RC impedance tuning module; the center tap of the secondary coil of the transformer is connected with the input end of the RX circuit through the switch SW3, and meanwhile the input end of the RX circuit is connected with the antenna through the switch SW2. In conclusion, through impedance balance of the RC impedance tuning module and the antenna, the principle of TX signal cancellation is realized, so that TRX signals work at the same time and at the same frequency, the applicability is wide, and on-chip integration is easy to realize.

A millimeter wave duplexer and dual-polarized antenna feed source integrated system comprises a shell, the shell is arranged on a rod body through an adjusting mechanism, the adjusting mechanism comprises an installation ring frame arranged on the rod body in a sleeving mode and a plurality of ratchet bars arranged on the surface of the rod body, and the outer side of the installation ring frame is provided with an accommodating cover extending in the axial direction of the installation ring frame. A pawl, a torsional spring and a driving assembly used for driving the pawl to rotate are arranged in the containing cover, the pawl is rotationally arranged in the containing cover through a rotating shaft, the rotating shaft is coaxially sleeved with the torsional spring, one end of the torsional spring is connected with the inner wall of the containing cover, the other end of the torsional spring is connected with the pawl, and the driving assembly drives the pawl to rotate in the first direction. In the process that the clamping end of the pawl is meshed with the ratchets of the ratchet bar, the mounting ring frame moves in the length direction of the ratchet bar so as to change the height of the mounting ring frame, unlocking and resetting of the pawl can be completed only through the driving assembly, and the adjusting efficiency is improved.

This invention discloses a radio frequency transceiver with both relay and mission modes, belonging to the field of radio frequency communication equipment technology. The transceiver includes a duplexer, a circulator, a receiving component, a transmitting component, a switch, a frequency converter, and a mode switching controller. The mode switching controller enables precise switching between the two modes. In mission mode, the signal is transmitted / received via a first switch, a second duplexer, a circulator, and a third receiving / transmitting component. In relay mode, the mission signal is transmitted via a first switch, a first duplexer, and a first receiving / transmitting component, while the relay signal is processed via a first switch, a second duplexer, a second receiving / transmitting component, and an independent frequency converter. This invention achieves integrated dual-mode functionality in a single device while solving problems such as crosstalk, poor frequency band compatibility, and slow switching in existing devices. It also reduces the size and power consumption of the radio frequency transceiver, improves signal transmission stability and communication quality, and adapts to complex communication scenarios.

The application provides a surface acoustic wave duplexer design method and application system, and belongs to the field of electronic communication, and solves the problem of low design efficiency of the surface acoustic wave duplexer. The technical scheme is as follows: the state of an individual in an initial group is initialized, the individual target parameter X of the surface acoustic wave duplexer is given and initialized, the strategy value Y of the individual is calculated, the state of the individual in the group is adjusted according to the self-adjusting function Adap, the random parameter Xj is generated and the random strategy value Yj is calculated. The target parameter Xn of a new individual is generated through the group behavior, the strategy value Yn of the new individual is calculated, the minimum value in Yn is recorded as the current strategy value Yb, the current strategy value Yb of each optimization is stored in the set Yc, the minimum value in the set Yc is the optimal strategy value Ymin, the final target parameter Xfinal corresponding to Ymin is obtained, and the final design result is output. The application has the beneficial effects that the surface acoustic wave duplexer based on the self-adjusting group strategy is efficiently designed, and is easy to be popularized to other surface acoustic wave devices.

This invention relates to the field of optical communication technology, and in particular to a single-fiber bidirectional device and its optical module with specific wavelength reflection, comprising: a transmitting TO-CAN, a receiving TO-CAN, an integrated tube, and a pigtail pin; the transmitting TO-CAN is coupled to one end of the integrated tube, the receiving TO-CAN is coupled to the side of the integrated tube, and the pigtail end of the pigtail pin is coupled to the other end of the integrated tube; a beam splitter and a filter are disposed at the central axis of the integrated tube, the beam splitter being used to reflect light returned from the pigtail pin into the receiving TO-CAN; the filter is disposed at the light inlet of the receiving TO-CAN; a grating fiber core is disposed inside the pigtail pin, the grating fiber core being located at the end of the pigtail pin, the grating fiber core being used to reflect light of a specific wavelength in the optical signal transmitted by the transmitting TO-CAN into the receiving TO-CAN.

This application discloses an electronic device, an antenna control method and apparatus, and a readable storage medium, belonging to the field of communication technology. The electronic device includes: a transceiver, a power amplifier (PA), a low-noise amplifier (LNA), a duplexer, a coupler, a switching switch, multiple phase shifters, and at least one antenna. The first terminal of the transceiver is connected to the input terminal of the PA, the output terminal of the PA is connected to the transmitting terminal of the duplexer, the second terminal of the transceiver is connected to the output terminal of the LNA, the input terminal of the LNA is connected to the receiving terminal of the duplexer, the antenna terminal of the duplexer is connected to the input terminal of the coupler, the output terminal of the coupler is connected to the moving terminal of the switching switch, the coupling terminal of the coupler is connected to the third terminal of the transceiver, multiple stationary terminals of the switching switch are connected one-to-one with multiple phase shifters, and each phase shifter is connected to at least one antenna. The multiple phase shifters correspond to different application scenarios, and the phase of each phase shifter matches the corresponding application scenario.