377 results about "Circulator" patented technology

The invention provides a sensing system fusing optical fiber vibration and acoustic emission, a monitoring method and a device, and relates to the technical field of optical fiber sensing. The device comprises a light source module, a sensing optical fiber, a detection module and a controller, the light source module is used for respectively emitting modulation pulse light for vibration monitoring and continuous wave laser for acoustic emission monitoring; the sensing optical fiber is arranged along a monitored structure or area, and at least one optical fiber acoustic emission sensing head is connected to the optical fiber in series. The detection module collects Rayleigh scattering light and beat frequency signals at all positions in the sensing optical fiber through a circulator and a coherent light receiver, and optical signals are converted into electric signals; wherein the electric signals comprise vibration electric signals and acoustic emission electric signals; the signal processing unit carries out phase demodulation and envelope analysis processing on the collected vibration electric signals and acoustic emission electric signals so as to obtain vibration waveforms and acoustic emission event space-time information along all points of the optical fiber. According to the invention, a monitoring task fusing vibration and acoustic emission can be accurately completed.

An optical frequency domain reflectometer with environmental disturbance resistance and large strain measurement capability belongs to the field of distributed optical fiber sensing and comprises an opposite sweep frequency light frequency modulation continuous wave signal generation module, a light splitting device, a modulation device, a circulator, a polarization controller, an optical coupling device, a photoelectric conversion module and a data acquisition and processing module. An optical signal generated by an opposite sweep frequency light frequency modulation continuous wave signal generation module is divided into probe light and local oscillation light through a light splitting device, the probe light is modulated through a modulation device and sent to an optical fiber through a circulator, and a Rayleigh back scattering light signal generated by the optical fiber and the local oscillation light interfere in an optical coupling device to obtain interference light; the photoelectric conversion module mixes beat frequency signals of interference light, and the data acquisition and processing module analyzes and processes the beat frequency signals. According to the invention, the position information of the Rayleigh backscattering point is marked by using the modulated probe light, the Rayleigh scattering signal at the corresponding position is restored, crosstalk between channels is inhibited, and high-precision measurement in a large dynamic range and resistant to environmental disturbance is realized.

The invention discloses an ultra-wideband circulator based on a periodic modulation topology circuit, and belongs to the technical field of microwave and radio frequency nonreciprocal circuits. The working bandwidth range of the circulator is widened, and non-reciprocal transmission is achieved through non-magnetic materials. A time sequence control unit is respectively connected with a Floquet topology circuit layer, a clock signal driving module, a reset signal driving module and a start signal driving module; the Floquet topology circuit layer is respectively connected with a first coupling port, a second coupling port and a third coupling port; the other ends of the first coupling port, the second coupling port, the third coupling port, the clock signal driving module, the reset signal driving module and the starting signal driving module are respectively grounded; the Floquet topology circuit layer adopts a six-layer parallel network structure, and each layer of network structure comprises a coupling capacitor and three N-type MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) switches. The advantages of the switched capacitor structure are utilized, and the signal processing capacity which is high in integration level, small in size and capable of breaking through delay-bandwidth limitation is achieved.

The technology described herein is directed towards a reconfigurable intelligent surface (RIS) that harvests RF energy from incoming signals based on energy harvesting antennas and associated energy harvesting circuitry. At the same time RIS elements (unit cells) redirect the incoming signals towards a predetermined direction. The harvested energy is combined and converted to DC power using a harvesting circuit. In one implementation, a dual-mode energy harvesting circuit employs a higher power rectifier subcircuit and a lower power rectifier subcircuit, with a multiport circulator and switch that self-actuates to use one or the other rectifier subcircuit based on the combined RF input power captured by the energy harvesting antennas. A multiple battery approach is described, in which one battery is charging based on the converted DC power, another, previously-charged battery is powering the reconfigurable intelligent surface components.

The waveguide carrying a nonlinear crystal with reflective interface, a pump photon source and a circulator define an optical parametric amplifier which uses optical power from the pump photons to boost incoming signal and idler photons which carry the encoded signal. The nonlinear crystal performs optical parametric amplification upon the incoming optical signal in a quantum photonic process that generates additional signal and idler photons to thereby boost the intensity of the incoming signal. A photodetector is coupled for communication with the third port and operative to convert the reflected optical signal into an electrical signal defining the output of the communications receiver.

The invention relates to the technical field of laser radars, in particular to a non-aliasing frequency-modulated continuous wave radar detection system and method, and the system comprises a light source, a beam splitter, a circulator, a 90-degree mixer, a signal conversion module and a signal processing unit. The signal processing unit is configured to construct a composite vector signal S based on the first electric signal I and the second electric signal Q, S = I + jQ, j is an imaginary part operator, obtain a double-sideband spectrum based on the composite vector signal S, determine the frequency of a signal peak in an upper frequency sweeping period and the frequency of a signal peak in a lower frequency sweeping period in the double-sideband spectrum, and determine the frequency of the signal peak in the upper frequency sweeping period and the frequency of the signal peak in the lower frequency sweeping period; and obtaining the distance and speed of the target to be measured based on the frequency of the signal peak in the upper frequency sweeping period and the frequency of the signal peak in the lower frequency sweeping period. According to the invention, the problem of signal aliasing during detection of the to-be-detected target can be solved at least.

The invention provides a gas saturation absorption optical path structure based on dual optical path enhancement, which belongs to the field of laser optical path design and comprises an optical fiber circulator, a gas absorption chamber and an optical fiber reflector. A first port of the optical fiber circulator is connected with a laser output optical fiber, a second port of the optical fiber circulator is connected with an input collimator of the gas absorption chamber, and a third port of the optical fiber circulator is connected with a detector and is used for providing frequency reference for gas absorption; and the optical fiber reflector is connected with the output end of the gas absorption chamber. According to the invention, the physical contradiction between the air chamber size and the optical path gain is broken through, and a compact frequency stabilization system with miniaturization and high stability is realized.

The invention discloses a temperature and hydrogen concentration dual-parameter synchronous detection system and method, and the system comprises an ASE broadband light source, the output of the ASE broadband light source is divided into two paths through a coupler, one path enters a first circulator, the other path enters a second circulator, the output of the first circulator enters a first FBG sensor, the output of the second circulator enters a second FBG sensor, and the output of the first FBG sensor enters a second FBG sensor. The two FBG sensors are arranged in the gas chamber, the first FBG sensor and the second FBG sensor are provided with FBG topological optical fiber structures with different working wavelengths and have temperature sensitivity and gas selective response, and reflected signals of the two FBG sensors are coupled to one path through the dual-channel wavelength division multiplexer and are sent to the spectrum analyzer for wavelength demodulation. The temperature sensitivity and the gas selective response are integrated in the same sensing unit by utilizing the wavelength coding characteristic of the fiber bragg grating, so that precise decoupling and real-time output of double parameters are realized, and the detection efficiency and the data consistency are improved.

The invention discloses a transceiving full-duplex dual-mode three-beam radio frequency component architecture and system, relates to the technical field of radio frequency communication and radar perception integrated front ends, and comprises the following steps: improving the stability of a system power-on process by combining an FPGA (Field Programmable Gate Array) unified trigger mechanism with graded power-on time sequence control of a radio frequency switch, a power amplifier and an LNA (Low Network Alliance); flexible reconstruction of channels 1-4 is realized through combination of a 2 * 2 switch matrix structure and dynamic interconnection of a circulator and a dual circular polarization port, real-time rotation of a polarization state and dynamic adjustment of a beam main lobe direction are realized through combination of a Berry geometric phase algorithm and a dual-stage regulation and control strategy of a reflection array rotation element, the flexibility of beam generation is improved, and the beam generation efficiency is improved. The dual-mode polarization reflection array is combined with the full duplex circulator and the time sequence control module, so that three polarization combination modes under the same hardware platform are realized, and the polarization multiplexing efficiency of the communication system is improved.

The utility model belongs to the technical field of optical fiber lasers, and relates to a multi-wavelength random optical fiber laser based on a four-port circulator and Brillouin-Rayleigh scattering, which is a closed-loop random optical fiber laser and comprises the four-port circulator, a seed laser is connected with the first port of the four-port circulator, and a seed laser is connected with the second port of the four-port circulator. The second port is connected with the Brillouin gain optical fiber, the third port is connected with the random Rayleigh scattering optical fiber, and the fourth port is connected with the optical fiber coupler; an erbium-doped fiber and a wavelength division multiplexer are connected between the Brillouin gain fiber and the fiber coupler, and a pump light port of the wavelength division multiplexer is connected with an output port of the 980nm laser. According to the utility model, the Brillouin gain optical fiber is subjected to Brillouin scattering, and the Rayleigh scattering of the random Rayleigh scattering optical fiber and the gain amplification of the erbium-doped optical fiber are combined, so that efficient and stable multi-wavelength output is realized, the number of output wavelengths is adjustable, the stability is high, and the device is suitable for a high-precision optical fiber sensing and dense wavelength division multiplexing system.

The invention provides a frequency modulation laser ranging and vibration measurement common-path design method, which belongs to the technical field of laser measurement and comprises a measurement light path, an auxiliary light path and a calibration light path. The measuring light path comprises a single-frequency laser and a tuning continuous wave laser, beam combination, modulation and beam splitting of measuring light beams are achieved through components such as a coupler, a circulator, an acoustic optical modulator, a wavelength division multiplexer and a collimating lens, and finally signals are received by a photoelectric detector. The auxiliary optical path adopts a Mach-Zehnder interferometer structure, and uses an optical fiber disc to generate an optical path difference for auxiliary measurement. The calibration light path accurately calibrates the laser frequency through an etalon and a photoelectric detector. The design effectively improves the integration level, stability and measurement precision of the system through a common-path structure, and is suitable for high-precision laser ranging application.

The application provides a semiconductor laser reservoir pool computing device based on silicon-based micro-resonant cavity optical feedback, and belongs to the technical field of photonic neuromorphic computing. Laser output by a driving laser is modulated by a phase modulator, and then is injected into a response semiconductor laser through a feedback cavity incoupler and a circulator; the output end of the response semiconductor laser is connected to an optical circulator in sequence through a second variable optical attenuator, a polarization controller, a silicon-based micro-resonator and a first variable optical attenuator, so as to form a silicon-based micro-resonator optical feedback loop; the output end of the feedback cavity incoupler is connected to a broadband photodetector, which is used to collect reservoir pool output signals; the phase modulator is loaded with a modulation signal containing an input signal and a random mask, so as to realize input layer signal coding. The application realizes the improvement of overall computing performance.

The application discloses a kind of time division multiplexing three-axis wide spectrum light source resonant type fiber-optic gyroscope detection systems and methods, belong to gyroscope optical system design field.System is constituted by optical system and signal detection system, and optical system includes a wide spectrum light source, a push-pull Y waveguide, a circulator, three mutually orthogonal transmission type fiber ring resonant cavity, two sections of delay optical fiber and a photoelectric detector;Signal detection system includes modulation and demodulation module, time division decoupling module and low-pass filter module.Three transmission type fiber ring resonant cavities are sequentially connected, and the time of optical signal reaching three fiber ring resonant cavities is different by being set delay optical fiber between adjacent two transmission type fiber ring resonant cavities.The application ingeniously designs three fiber ring resonant cavities to form three-axis integrated structure.In this way, the time difference of three-axis signals is utilized, and multiplexing in time domain can be realized without adding additional devices.

The technology described herein is directed towards a cryogenic magnet-less circulator device, in which the circulator device is based on the spatiotemporal modulation of angular momentum for microwave photons, controlled using a modulated control signal. The circulator device is configured for integration with a quantum computer, e.g., to facilitate qubit measurements. The circulator topology and design are based on tank circuits, e.g., arranged in a star topology with different sets of radio frequency superconducting quantum interference devices (rf-SQUIDS) per tank circuit, that resonate out-of-phase based on the modulated control signal. A single control line can be used to operate the circulator. The circulator can be fabricated using standard semiconductor processes, allowing one or more circulators to be integrated on the same superconducting chip as the qubits. A classical computer can be used to output the modulated control signal, and adapt the modulated control signal as needed under varying conditions.

The objective of the present invention is to provide a plasma processing device that generates an axially symmetrical electric field distribution under a wide range of conditions without actively allowing microwave energy to be lost other than for the generation of plasma, and to enable uniform processing. To this end, the plasma processing device comprises a septum polarizer (15) that allows microwaves that have propagated via a circulator (12) to propagate to a processing chamber, wherein: one port of the circulator (12) is connected to each of one port of the septum polarizer (15) and the other port of the septum polarizer (15), and the other port of the circulator (12) is connected to a high-frequency power supply; and the one port of the septum polarizer (15) is a port for converting the propagated microwaves to right-handed circularly polarized waves, and the other port of the septum polarizer (15) is a port for converting the propagated microwaves to left-handed circularly polarized waves.

This invention discloses a multi-channel programmable miniaturized high-speed FBG demodulation system and method based on an AWG (Optical Fiber Optic Generator), belonging to the field of fiber optic sensing technology. The AWG-based multi-channel programmable miniaturized high-speed FBG demodulation system includes a high-stability broadband light source module, a low-loss isolation module, a miniaturized programmable fiber optic amplifier, a circulator, a two-stage miniaturized high-speed optical switch, a high-crosstalk AWG module, a photoelectric conversion module, a programmable A / D conversion module, and a core control module. The AWG-based multi-channel programmable miniaturized high-speed FBG demodulation method involves the optical signal entering an FBG sensor array, the FBG sensor reflecting the optical signal, the reflected optical signal entering the AWG module, and the output light undergoing photoelectric conversion to calculate the center wavelength of the FBG sensor. This invention, based on an AWG, improves demodulation accuracy while ensuring the demodulation range, achieving continuous wavelength demodulation within the AWG wavelength range.

A Josephson parametric amplifier packaging module, relating to the technical field of quantum computing. The Josephson parametric amplifier packaging module comprises a substrate (1), a magnetic shield (2), a circulator (3) and a Josephson parametric amplifier (4). The magnetic shield (2) is fixed on the substrate (1), and the magnetic shield (2) comprises a first cavity (201) and a second cavity (202). The circulator (3) and the Josephson parametric amplifier (4) are respectively located in the first cavity (201) and the second cavity (202), the circulator (3) comprises a first port (31), a second port (32) and a third port (33), and the Josephson parametric amplifier (4) comprises a signal port (41) and a pump port (42). The second port (32) is coupled to the signal port (41) by means of a connector (5), and the first port (31), the third port (33) and the pump port (42) extend to the exterior of the magnetic shield (2).

A technology is described for a time division duplex (TDD) repeater with circulators. The TDD repeater can comprise a first port, a second port, a first circulator, a second circulator, and first and second amplification paths coupled between the first circulator and first port and the second circulator and second port. The TDD repeater can comprise a software defined filter (SDF) on each of the first and second amplification paths to filter selected symbols of TDD signals on the first and second amplification paths.

The invention relates to the field of microwave technology and electronic devices, and particularly discloses a surface-mounted microstrip circulator with a shielding cavity, which comprises a shielding body provided with six caulking grooves uniformly distributed at intervals along the circumferential direction, the shielding cavity is formed on the shielding body, and a partition plate is arranged in the shielding cavity to divide the shielding cavity into an upper cavity and a lower cavity which are relatively isolated; the gyromagnetic ferrite is arranged in the lower cavity, the gyromagnetic ferrite is fixedly connected to the partition plate, and the corners of the gyromagnetic ferrite are correspondingly embedded into the caulking grooves; the microstrip circuit is arranged below the gyromagnetic ferrite, and the microstrip circuit is provided with three ports; three conductive connecting bodies, wherein each conductive connecting body is correspondingly and electrically connected with each port; the permanent magnet is arranged in the upper cavity and is used for providing a bias magnetic field for the gyromagnetic ferrite; and the cover plate is connected to the shielding body so as to package the permanent magnet in the upper cavity. Therefore, electromagnetic field distribution can be optimized, high-order mode and spurious resonance can be effectively suppressed, and good rigidity and heat dissipation capability can be achieved.

The invention relates to the technical field of wireless communication, and discloses a design method for a broadband Mesh networking communication terminal radio frequency module, which comprises the following steps: designing the overall structure of the radio frequency module, and optimizing the design of a receiving link, a transmitting link and a transceiving logic control unit based on a radio frequency chip. The transmitting link adopts a preceding-stage, middle-stage and final-stage three-stage power amplification structure and is provided with graded power headroom, and the core is that the transmitting-receiving logic control unit takes a radio frequency chip as a core and synchronously controls the radio frequency switch of the receiving link and the amplifier bias of the transmitting link through an SPI (Serial Peripheral Interface) bus; the radio frequency module designed by the method is high in output power, low in noise, high in reliability and strong in anti-interference capability, can be used for realizing quick and reliable switching of transmitting and receiving states and frequency point selection of a frequency hopping filter, and is integrated with a circulator standing wave protection mechanism to effectively absorb reflection power and protect a power amplifier. The radio frequency module designed by the method is high in output power, low in noise, high in reliability and strong in anti-interference capability; the method is especially suitable for high-speed frequency hopping broadband Mesh ad hoc network communication terminals.

The application relates to a device, a system and a duplex communication method for duplex quantum direct communication, the device comprising a quantum system sending device, a quantum system receiving device and a circulator, wherein the quantum system sending device is used for sending a first quantum state signal out on a first optical fiber via the circulator; and the quantum system receiving device is used for receiving a second quantum state signal transmitted on the first optical fiber via the circulator. Through the scheme, the optical fiber link resource consumption in the deployment process of the duplex quantum direct communication terminal is effectively reduced, the deployment cost is reduced, meanwhile, the quantum signal and the classical signal are separated and transmitted, the interference problem of the classical signal on the quantum signal in the common fiber transmission process is solved, and the communication performance of the terminal is prevented from being reduced. Therefore, the optical fiber link resource and cost are reduced, and meanwhile, the performance of the system is maintained.

This invention proposes a random microwave pulse generation system and method based on an optoelectronic oscillator, belonging to the field of microwave photonic signal generation and processing technology. The system includes a laser, a polarization controller, a closed-loop optoelectronic oscillator (OEO) loop, a random fiber grating string, and a function generator; wherein the closed-loop optoelectronic oscillator (OEO) loop mainly consists of a Mach-Zehnder modulator, a circulator, an erbium-doped fiber amplifier, a photodetector, an electrical amplifier, and a directional coupler.

The application provides a mixed-bonding-based MEMS circulator and a preparation method thereof, and relates to the technical field of MEMS circulators.The application adopts a mode of wafer bonding first and opening cavity etching, the bonding surface is free of recessed structures during bonding, the flat bonding surface bears the bonding pressure, and the bonding reliability is improved.The mixed bonding is adopted, the medium area is used for isolating the metal area circuit, the mixed bonding plays the roles of electrical signal isolation and leakage protection, and the device reliability is improved.In addition, in view of the problem that etching metal pollutes the etching equipment due to the etching after bonding, the medium area is arranged in the first wafer cavity etching area based on the growth medium layer step of the mixed bonding process, the etching step is stopped at the medium area penetrating through the first wafer, the metal area of the second wafer is avoided from being etched, and the etching metal is avoided from polluting the etching equipment.Therefore, the growth medium step of the mixed bonding process itself is used, the process steps are simplified, and the etching equipment pollution problem is solved.

The invention provides an optical fiber loopback device which is used for detecting signal on-off of a to-be-detected optical cable. The optical fiber loopback device comprises a shell and a lens unit. An accommodating space is formed in the shell and is used for accommodating a connector for integrating a signal transmitting end and a signal receiving end of a to-be-tested optical cable; the lens unit is fixed in the accommodating space, the lens unit comprises a first reflection unit and a second reflection unit, the first reflection unit is used for receiving detection light emitted by the signal sending end of the to-be-detected optical cable and is used for reflecting the detection light to the second reflection unit, and the second reflection unit is used for reflecting the detection light to the optical cable. The second reflection unit is used for reflecting the detection light from the first reflection unit to a signal receiving end of the to-be-detected optical cable. According to the optical fiber loopback device, the optical fiber end face of the to-be-detected optical fiber is in butt joint with the lens unit to detect the on-off condition of the to-be-detected optical fiber, and abrasion to the optical fiber end face of the to-be-detected optical fiber can be reduced. The invention further provides an optical fiber communication detection device.

The invention discloses a tumor detection device and method based on a diamond quantum sensor, and belongs to the technical field of biomedical detection. The device comprises an optical fiber laser, an optical fiber beam splitter, an optical fiber attenuator, an optical fiber circulator, an optical filter, two photoelectric detectors, a differential amplifier, an electronic filter, a computer, a signal generator, two microwave antennas and an optical fiber probe. The optical fiber probe comprises an optical fiber packaged in a plastic shell, a diamond quantum sensor which is fixed at the tail end of the optical fiber and comprises an NV color center, and a first microwave antenna integrated beside the optical fiber. The laser excites the diamond to generate fluorescence, meanwhile, the signal generator drives the two microwave antennas to apply a microwave field, and the dielectric property of the sample to be detected modulates the fluorescence intensity of the diamond by influencing the microwave field. Laser noise is eliminated through a differential amplification and filtering technology, and fluorescence signal change is analyzed by a computer, so that dielectric constant distribution of a sample is reconstructed, and non-invasive and high-sensitivity detection of tumors is realized.

This invention discloses a double-sideband swept-frequency laser ranging and velocimetry device and method based on phase unwrapping. The device includes a single-frequency laser, a double-sideband modulator, an amplifier, a first coupler, a first demultiplexer, a second coupler, a second demultiplexer, a third coupler, a circulator, an optical antenna, a first photodetector, a second photodetector, a synchronous acquisition card, and a phase unwrapping and range / velocimetry demodulation module. This invention can obtain the distance values ​​corresponding to all sampling times within one sweep cycle, achieving an order-of-magnitude increase in system measurement rate; simultaneously, it can adapt to dynamic targets with arbitrary motion forms, without requiring a constant target velocity.

The utility model discloses a mountain landslide early warning device based on waveguide deformation relates to geological disaster monitoring field, including microwave source, circulator, waveguide, lossy medium, waveguide load, power detection module and signal processing module, the output of microwave source is connected with circulator's Port1 port through radio frequency cable, and Port2 port of circulator is connected with the input of waveguide through coaxial waveguide adapter, and Port3 port of circulator is connected with power detection module through radio frequency cable, the inside chamber end of waveguide is filled with lossy medium, and the outer port of waveguide is fixedly connected with waveguide load, the input of waveguide load is in close contact with lossy medium, and the output of power detection module is connected with the input of signal processing module through AD acquisition circuit. The utility model overcomes the deficiency of prior art, can realize the sensitive capture and accurate evaluation to mountain tiny slip. Thus effectively prevent the occurrence of landslide disaster.

The application discloses a microwave generation method and device, a microwave generator and a storage medium. The method comprises the following steps: acquiring an optical signal output by an adjustable laser and inputting the optical signal to a preset modulator through a polarization controller; loading a driving signal on the preset modulator and adjusting the power size, and outputting first positive and negative second-order sidebands and second positive and negative second-order sidebands; inputting the first positive and negative second-order sidebands and the second positive and negative second-order sidebands into a polarization maintaining Bragg grating through a circulator, making the sidebands orthogonal to each other through a band-stop filter, and obtaining the first positive and negative second-order sidebands and the second positive and negative second-order sidebands after the orthogonalization; respectively performing modulation processing on the sidebands after the orthogonalization, and obtaining a target signal; and performing spread spectrum on the target signal, and generating a microwave signal. The application acquires two pairs of sidebands through an optical signal and performs modulation, generates a microwave signal after spread spectrum on the target signal obtained, solves the problem of a small adjustable frequency range, and generates an arbitrary waveform phase microwave signal with a large adjustable frequency range and low noise.

The invention provides a coherent optical time domain reflection sensing device and a method thereof, and relates to the technical field of distributed optical fiber acoustic wave detection. The device comprises a light source, a 1 * 2 coupler, a control and signal processing unit, an arbitrary waveform generator, a double-path parallel Mach-Zehnder electro-optical modulator, a reference arm optical fiber, an erbium-doped optical fiber amplifier, an optical filter, a circulator, a sensing optical fiber, a 90-degree optical mixer, a photoelectric detector and a data acquisition card. A detection light sequence containing positive and negative frequency shift light pulse sequences is injected into a sensing optical fiber, returned signal light which carries light phase information of each detection point and has superposed frequencies is mixed with local reference light, signal separation is achieved after the signal light is multiplied by complex factors corresponding to each frequency shift pulse and integration of a periodic integral multiple window is carried out, and the detection point light phase information is obtained. And optical phase information demodulation is carried out, and then fusion of detection results of optical signals of various frequencies is carried out, so that high-sampling-rate sensing of acoustic vibration is realized.

The invention provides a communication system and electronic equipment. The communication system comprises a first transceiver, an antenna radiator, a connecting circuit and a matching circuit, the connecting circuit is electrically connected between the first transceiver and the antenna radiator, the matching circuit comprises a circulator and a first impedance element, the circulator is electrically connected between the first transceiver and the connecting circuit, one end of the first impedance element is electrically connected with the circulator, and the other end of the first impedance element is electrically connected with the antenna radiator. The other end of the first impedance element is grounded. The communication system and the electronic equipment provided by the invention are beneficial to reducing impedance fluctuation and improving signal transmission performance.