Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

248 results about "Microwave transmission" patented technology

Microwave transmission is the transmission of information by microwave radio waves. Although an experimental 40-mile (64 km) microwave telecommunication link across the English Channel was demonstrated in 1931, the development of radar in World War II provided the technology for practical exploitation of microwave communication. In the 1950s, large transcontinental microwave relay networks, consisting of chains of repeater stations linked by line-of-sight beams of microwaves were built in Europe and America to relay long distance telephone traffic and television programs between cities. Communication satellites which transferred data between ground stations by microwaves took over much long distance traffic in the 1960s. In recent years, there has been an explosive increase in use of the microwave spectrum by new telecommunication technologies such as wireless networks, and direct-broadcast satellites which broadcast television and radio directly into consumers' homes.

Distributed multi-target microwave transmission control method and system

The invention provides a distributed multi-target microwave transmission control method and system, and relates to the technical field of data processing, and the method comprises the steps: obtaining the geographic coordinate information of each target device, constructing the motion track of each target device, sorting the coordinate information of each target device according to a time node sequence, and storing the sorted coordinate information of each target device; coordinate difference values between adjacent time nodes are accumulated to obtain a predicted coordinate data set; coordinate distance values between target devices are extracted; the coordinate distance values are subjected to grouping statistics to obtain a position merging data set; beam direction range information and beam angle interval parameters of a current time period are extracted; and obtaining a beam candidate data set, performing coordinate comparison on each target device to obtain beam binding data, generating a control instruction, and ensuring that the beam adjusts the beam emission direction according to the control instruction. The coordinate of the target equipment can be predicted, the beam emission direction can be controlled, and microwaves can be stably transmitted to the target equipment.
Owner:TIMES TIANHAI TECHNOLOGY CO LTD

915 MHz MPCVD device for 16-inch diamond wafer deposition

The invention provides a 915 MHz MPCVD device for 16-inch diamond wafer deposition, and relates to the technical field of microwave plasma chemical vapor deposition. The device comprises a shell, a cavity is formed in the shell, a microwave inlet is formed in the top of the shell, a coaxial antenna is installed in the cavity of the shell, an air inlet is formed in the coaxial antenna, an air outlet and a substrate are arranged at the bottom of the shell, and the air inlet and the air outlet are communicated with the cavity; and a plurality of microwave medium windows are arranged on the inner wall of the shell. The microwave dielectric windows are arranged, the length and the phase of a microwave transmission path are changed, the two microwave electric field areas are connected into a whole, the plasma is excited, and the formed plasma area is located on the substrate. According to the device, a continuous TM02 microwave electric field with the diameter of 16 inches is generated on a substrate through the design of the structure of the resonant cavity and the shape and position of a microwave medium, a large-size plasma area is excited, and 16-inch diamond wafer deposition is achieved.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY

MPCVD cavity structure simulation optimization method based on neural network agent model

The invention relates to an MPCVD cavity structure simulation optimization method based on a neural network proxy model, and the method comprises the following steps: S1, obtaining the radius R1 and height H1 of a reaction cavity of MPCVD equipment and the size D1 of a microwave transmission channel, and building a simulation model of the reaction cavity of the MPCVD equipment; s2, calculating the position of the plasma in a reaction cavity of the MPCVD equipment by using a Finner model, performing grid region division according to a prediction result of the Finner model, and establishing a chemical reaction system of the plasma; s3, constructing a neural network training set based on the physical parameters of the plasma in the reaction cavity of the MPCVD equipment, and performing deep neural network training; and S4, optimizing the size of the reaction chamber of the MPCVD equipment through a multi-target particle swarm optimization algorithm on the basis of a plasma form prediction result obtained by deep neural network training. And establishing a multi-physical field simulation model of the MPCVD equipment reaction cavity and training a neural network, so that the plasma can be uniformly distributed under the condition of maintaining the original high-density distribution level by optimizing the MPCVD equipment reaction cavity.
Owner:CHENGDU TENGLIU OPTOELECTRONICS CO LTD +2

Heavy oil heat-flow coupling development experimental device and method based on microwave-assisted gravity drainage

The invention provides a heavy oil thermal-flow coupling development experimental device and method based on microwave-assisted gravity drainage, and belongs to the field of oil-gas field development. The experimental device comprises a three-dimensional oil reservoir simulation system, a microwave-assisted heating system, a horizontal well injection-production regulation and control system and a multi-field monitoring system; the microwave auxiliary heating system comprises a microwave generation regulation and control system, a microwave transmission system and a shaft integrated microwave radiator, the microwave generation regulation and control system comprises an industrial grade microwave generator, a power regulator and a PLC, and the microwave transmission system comprises a microwave coaxial cable and a microwave waveguide tube bundle; and the microwave generator is continuously connected with the microwave waveguide tube bundle and the shaft integrated microwave radiator. According to the heavy oil thermal-flow coupling development experimental device and method based on microwave-assisted gravity oil drainage, the technical problems that an existing deep heavy oil thermal recovery experimental device cannot reproduce a'thermal-flow-force 'multi-field coupling environment, the microwave heating adaptability is poor, and the experimental scale and the field deviation is large are solved. The heavy oil thermal-flow coupling development experimental device and method based on microwave-assisted gravity oil drainage solve the technical problems that an existing deep heavy oil thermal recovery experimental device cannot reproduce the'thermal-flow-force' multi-field coupling environment.
Owner:YANGTZE UNIVERSITY

Highly packaged magnetic sensing chip based on NV color center

The invention discloses a highly packaged magnetic sensing chip based on an NV color center, and the chip comprises a packaging housing (1) which is provided with a packaging pedestal and chip pins. The chip is characterized in that the chip also comprises an NV color center diamond (2) which is arranged on the packaging base; the laser diode bare chip (3) is arranged on the packaging base, and the light-emitting side of the laser diode bare chip faces the NV color center diamond; the microwave transmission microstrip line (4) is arranged between the interior and the edge of the packaging base and is electrically connected with the chip pins; the first photoelectric detector assembly (5) is arranged on the NV color center diamond and used for collecting fluorescence signals.
Owner:MAINTENANCE & TEST CENTRE CSG EHV POWER TRANSMISSION CO +2

Electronic-grade polycrystalline silicon reduction furnace with double heating systems and process method thereof

The invention discloses a double-heating-system electronic-grade polycrystalline silicon reduction furnace and a process method thereof, and relates to the technical field of polycrystalline silicon production equipment, and the reduction furnace comprises a cooling liquid inlet and a cooling liquid outlet which are respectively formed in the upper part and the lower part of a microwave window; a microwave emission branch pipe is fixedly arranged on the outer side of each microwave window, and each microwave emission branch pipe is connected with the microwave emitter through a microwave transmission header pipe; the method comprises the following steps: S1, starting the furnace; s2, early growth stage of the silicon rod; s3, middle growth stage of the silicon rod; s4, later growth stage of the silicon rod; and S5, blowing out the furnace and cooling. The double-heating-system electronic-grade polycrystalline silicon reduction furnace has the beneficial effects that silicon rods with larger diameters can be produced, and the yield of a single furnace is remarkably increased; the quality of the silicon rod is improved, and the high quality requirement of electronic-grade polycrystalline silicon is met; according to the process method disclosed by the invention, the utilization rate of raw materials is increased to 89% or above, the generation amount of amorphous silicon powder is reduced to 7.2 kg / furnace or below, and the energy consumption of a unit silicon rod is reduced.
Owner:内蒙古大全半导体有限公司

Advanced water detection method based on combination of controllable microwave and optical fiber temperature measurement

The invention discloses an advanced water detection method based on controllable microwave and optical fiber temperature measurement combination. The method comprises the following steps: arranging a controllable microwave and optical fiber temperature measurement system; then the microwave transmitter and the receiver are matched with each other to obtain microwave data; meanwhile, the distributed optical fiber sensor obtains temperature data; then the monitoring host performs attenuation analysis on each group of received microwave data in combination with microwave emission power, preliminarily judges whether a water-containing disaster-causing body exists or not, and performs inversion processing on the received temperature data through a heat conduction model if the water-containing disaster-causing body exists so as to obtain the position of a heat source; and finally, setting a water-containing disaster-causing body judgment condition, performing fusion processing on the obtained water-containing disaster-causing body position and the heat source position, and finally determining the position of the water-containing disaster-causing body. By combining controllable microwaves with optical fiber temperature measurement, on the premise of a large detection range, the position of a water-containing disaster-causing body can be rapidly and accurately detected, meanwhile, the device has the advantage of being convenient to arrange, and therefore advanced detection of mine water disasters is effectively achieved.
Owner:YUNLONG LAKE LAB OF DEEP UNDERGROUND SCI & ENG +1

Corrugated board moisture content measuring method and system

The invention relates to the technical field of moisture content measurement, and discloses a corrugated board moisture content measurement method and system, and the method comprises near infrared spectrum data, microwave transmission data and acoustic vibration data; calculating a spectral feature vector; constructing a microwave response matrix; determining an acoustic damping coefficient; calculating stability indexes of the spectral feature vector, the microwave response matrix and the acoustic damping coefficient in a preset time window, and calculating a consistency index and a confidence coefficient weight; fusing the spectral feature vector, the microwave response matrix and the water content corresponding to the acoustic damping coefficient through a Kalman filtering algorithm, and outputting initial water content; dynamically adjusting a process noise covariance matrix of Kalman filtering, and when the residual error of any data source exceeds a preset statistical threshold value, resetting the confidence coefficient weight corresponding to the data source to zero; and repeatedly executing fusion, and outputting the water content. According to the method, three measurement means of near infrared, microwave and acoustics are adopted, the water content state of the corrugated board can be represented more comprehensively, and the water content measurement precision is improved.
Owner:HUBEI PINTIAN PACKAGING CO LTD

Quantum current transformer based on optical fiber isolation microwave transmission

The quantum current transformer based on the optical fiber isolation microwave transmission comprises a high-voltage primary side which comprises a magnetic shielding ring and an NV color center magnetic sensing probe module, and a magnetic sensing probe is arranged in the magnetic shielding ring; at the low-voltage secondary side, the microwave system is used for generating radio-frequency signals in a preset frequency range and transmitting the radio-frequency signals to the NV color center magnetic-sensing probe module, the laser system is used for generating continuous laser and transmitting the continuous laser to the NV color center magnetic-sensing probe module, and the microwave system and the laser system are used in cooperation to drive the NV color center to generate fluorescence signals representing the magnetic field intensity. A fluorescence signal is transmitted to the data processing system to calculate to-be-detected current information; wherein the microwave system is connected with the NV color center magnetic sensing probe module through an optical fiber, the microwave system modulates the radio frequency signal into an optical signal, transmits the optical signal to the NV color center magnetic sensing probe module, and restores the optical signal into the radio frequency signal in the NV color center magnetic sensing probe module to be received. According to the transformer, stable transmission of microwave signals under the high-low voltage isolation condition is achieved, the design is reasonable and exquisite, and the measurement precision is high.
Owner:CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +4

Dual board patch array antenna

The present invention provides a dual board patch array antenna, comprising: a radio board; a first-layer antenna board and a second-layer antenna board; the ground plane of the radio board is in contact with the first radiation ground plane of the first-layer antenna board through a patch-type conductive pad to form an extended ground area of ground connection; the probes of the radio board pass through and contact the patch microwave transmission line of the first-layer antenna board to form an electrical connection; wherein the patch microwave transmission line is assigned to the antenna radiating element of the second-layer antenna board as a vertically polarized antenna and a horizontally polarized antenna; the antenna radiating element contacts the first radiation surface on the first-layer antenna board through the conductor pad on the first layer antenna board, so as to expand the radiation surface area of the dual board patch array antenna.
Owner:UNITIK TECH CO LTD

Space high-power microwave insulation improvement device and method based on N2 / SF6 mixed gas

The present invention provides a device and method for improving the insulation performance of high-power microwaves in space using an N2 / SF6 mixed gas mixture. The device comprises an N2 gas cylinder, an SF6 gas cylinder, and two vacuum chambers. The gas cylinders and vacuum chambers are connected to the equipment to be protected via a gas path equipped with valves and pressure detection devices. A multi-stage pressure reduction device is also provided on the gas path between the gas cylinders and the equipment to be protected. This device utilizes the strong electronegativity of inert gases, making it reliable, safe, and easy to implement. Through specific valves and pressure reduction designs, it can provide multiple solutions for targeted and comprehensive improvements to the insulation performance of space microwave transmission devices, tailored to different space application scenarios, thereby enhancing the reliability and safety of space equipment.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Microwave stirring device

The utility model relates to the technical field of microwave heating equipment, and provides a microwave stirring device which comprises a frame body, a microwave source, a microwave transmission channel, a rotating table and a driving mechanism, the microwave source is arranged on the frame body; the microwave transmission channel is arranged on the frame body; the microwave transmission channel is communicated with the microwave source and the cooking cavity; the rotating table is located in the microwave transmission channel; the rotating table is rotationally arranged on the frame body around a preset axis; a through hole for microwaves to pass through is formed in the rotating table; the driving mechanism is used for driving the rotating table to rotate; and the driving mechanism is arranged on the frame body.
Owner:GUANGZHOU YINGZI TECH CO LTD +1

Temperature monitoring system and over-temperature protection method suitable for fusion reactor low-clutter system

The invention discloses a temperature monitoring system suitable for a fusion reactor low-clutter system and an over-temperature protection method. The temperature monitoring system comprises a high-speed temperature acquisition unit, a thermocouple sensor, an industrial control upper computer and a database server. A microwave excitation signal of the microwave excitation source is amplified by the microwave source klystron and then transmitted to the low-clutter coupled antenna through the microwave transmission line, and a plurality of temperature measuring points are arranged on the waveguide surface of the microwave transmission line and the end face of the low-clutter coupled antenna. Measurement output ends of the thermocouple sensors are uniformly accessed and gathered into the high-speed temperature acquisition unit and are uploaded to the industrial control upper computer, and the industrial control upper computer records and stores acquired multi-channel real-time temperature data, control signal output values and alarm events into the database server. The method has the advantages that early warning and temperature regulation are carried out for potential thermal runaway faults, so that the equipment safety of a high-power microwave transmission device and the normal operation of a low-clutter current driving system are guaranteed.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

A microwave signal joint processing method based on a composite channel

The application relates to the field of microwave transmission and discloses a microwave signal joint processing method based on a composite channel, which realizes joint processing of low-temperature high-sensitivity receiving channel signals and normal-temperature traditional receiving channel signals through mutual fusion, mutual verification and joint processing of the two kinds of channel signals, can significantly improve the signal-to-noise ratio and receiving accuracy of the system, and can effectively eliminate the influence of false signals, reduce the false alarm rate of a radar or electronic reconnaissance system, and protect the low-temperature high-sensitivity receiving channel from being burned out by closing the channel through a switch matrix or carrying out attenuation processing in the front end of the channel when a large signal exists.
Owner:JIANGXI ZHONGWEI DAXIN TECHNOLOGY CO LTD

Anti-interference dynamic optimization system and method for radio and television microwave transmission quality

The invention discloses an anti-interference dynamic optimization system and method for radio and television microwave transmission quality. The system comprises a multi-dimensional interference sensing module, a multi-index quality evaluation module, a coupling relation decoupling modeling module, a dynamic optimization decision module and a closed-loop feedback reconstruction module. According to the method, multi-dimensional interference characteristic parameters are collected, a multi-dimensional transmission quality index system is constructed, a comprehensive evaluation value is calculated, a nonlinear coupling relation model is established to recognize dominant interference factors, an optimization objective function is solved to generate a parameter optimization scheme, and self-adaptive optimization is achieved through online reconstruction and closed-loop feedback. According to the invention, accurate sensing and distinguishing of multi-source interference are realized, transmission link parameters are optimized in a targeted manner, and the stability and reliability of broadcast television microwave transmission quality in a complex electromagnetic environment are improved.
Owner:SICHUAN CGAGA SOFTWARE CO LTD

A microwave transmission device vacuum packaging structure

The utility model discloses a kind of vacuum packaging structures of microwave transmission device, for forming the microwave energy transmission environment of vacuum, including packaging shell and the cover plate of setting packaging shell, the cable hole for power line bundle to enter is opened in packaging shell, sealing mechanism is set at cable hole and is blocked;The sealing ring is set between the contact surface of cover plate and packaging shell, lock catch plate is set in the outer periphery of cover plate, lock catch plate and cover plate edge rotation cooperation, the buckle block of being coupled of lock catch plate is set to packaging shell outer wall, the buckle block is slidably connected with packaging shell along the direction perpendicular to the board surface of cover plate, the utility model will buckle block sliding arrangement, and buckle block is moved by sliding drive mechanism, can be closed, first lock catch plate and buckle block are connected, then locking is carried out by sliding drive mechanism, so as to can reduce installation difficulty, and the compression tightness of sealing ring is flexibly controlled and adjusted.
Owner:NANJING DAJIN PRECISION MASCH CO LTD

Multi-quantum bit control system and method

The invention provides a multi-quantum-bit control system and method, and relates to the technical field of superconducting quantum computing. The multi-quantum bit control system comprises a first common microwave transmission line and a quantum bit measurement and control unit. The quantum bit measurement and control unit comprises a superconducting quantum bit; the quantum bit driving cavity applies a driving microwave pulse for near resonance with the superconducting quantum bit to the quantum bit driving cavity through a first common microwave transmission line, and the frequency of the driving microwave pulse is matched with the resonant frequency of the quantum bit driving cavity, so that the quantum bit driving cavity generates near resonance, and the superconducting quantum bit is driven. Performing a single quantum bit gate operation on the superconducting quantum bits; and the quantum bit magnetic flux bias circuit is in coupled connection with the superconducting quantum bit and is used for applying a first bias pulse signal to the superconducting quantum bit so as to adjust the quantum bit frequency of the superconducting quantum bit, so that the superconducting quantum bit and the quantum bit driving cavity are in near resonance.
Owner:BEIJING ACAD OF QUANTUM INFORMATION SCI

Semiconductor device and method for manufacturing the same

The present invention provides a semiconductor device and a method for fabricating the same. In the semiconductor device, a first substrate includes a first through-hole extending through the first and second surfaces, and a second substrate includes a second through-hole extending through the third and fourth surfaces. A microwave transmission line is located on the third surface, and a microwave antenna having a diamond bottom surface with an NV color center is mounted on the second through-hole, coupling the microwave antenna to the microwave transmission line. A laser source element is located below the fourth surface, and a photodetector is located on the first surface. The present invention integrates a laser source with a diamond chip, using MEMS technology to implement an integrated magnetic field sensor, enabling mass production at low cost. The through-holes for the laser source and microwave antenna are aligned simultaneously, improving the flexibility and reliability of the magnetic field sensor. Furthermore, the angled sidewalls of the first through-hole enhance the fluorescence collection efficiency of the photodetector, thereby increasing the sensitivity of the magnetic field sensor. Finally, a long-pass filter and a reflective metal layer further enhance the sensitivity of the quantum magnetic field sensor at the same volume.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Electron Cyclotron Resonance Ion Source

The application discloses an electron cyclotron resonance ion source, which comprises a plurality of microwave transmission modules, a plurality of microwave resonance cavities, a plasma generation chamber and a magnetic field module, the microwave transmission module comprises a microwave source, an impedance matcher and a waveguide, the microwave source is used for generating and emitting microwaves, the microwave sources generate microwaves with the same or different frequencies, the inlet of the waveguide is connected with the microwave source, and the outlet is connected with the microwave resonance cavity, each waveguide is connected with one microwave resonance cavity, the impedance matcher is used for adjusting the frequency and standing wave of the microwaves and realizing impedance matching of microwave feeding, the inlet of the plasma generation chamber is connected with the outlets of the plurality of microwave resonance cavities, free electrons are formed at the boundary of the plasma generation chamber and the plurality of microwave resonance cavities, and the magnetic field module is used for generating a magnetic field, so that the free electrons make spiral motion in the plasma generation chamber and collide with background gas introduced into the plasma generation chamber to generate plasma. The electron cyclotron resonance ion source can realize multi-frequency microwave feeding and improve the uniformity of plasma.
Owner:QINGDAO SIFANG SRI INTELLECTUAL TECHNOLOGY CO LTD

A high-efficiency stepped metal corrugated microwave uniform heating device

The present invention discloses a high-energy-efficiency stepped metal corrugated microwave uniform heating device, which comprises: a heating chamber, one side of the heating chamber is connected to a chamber door for opening and closing, a loading platform is provided at the inner bottom of the heating chamber, and food to be heated is placed on the loading platform; a metal cavity is formed between the bottom of the loading platform and the heating chamber; a magnetron, the magnetron is connected to a power supply to generate microwaves; a microwave transmission component, one end of the microwave transmission component is connected to the magnetron, and the other end of the microwave transmission component is connected to the metal cavity and transmits the microwaves generated by the magnetron into the metal cavity; a stepped metal corrugated structure, the stepped metal corrugated structure is provided with multiple groups, each group of the stepped metal corrugated structures includes multiple longitudinally arranged metal plates, the multiple metal plates are fixedly connected to the bottom surface of the metal cavity, and the heights of adjacent metal plates are different. The microwaves generated by the magnetron generate uniform upward microwave energy on the stepped metal corrugated structure, which passes through the loading platform to uniformly heat the food.
Owner:BEIHANG UNIV

A high-power capacity gyrotron collector structure

This invention relates to the field of vacuum electronics technology, specifically to a high-power capacity gyrotron collector structure. It includes a nonlinear interaction section, after which multiple segmented units are coaxially connected. Each segmented unit includes an output mode transition or output mode converter and a collector uniformity section. An electron beam channel and a microwave transmission channel are formed within the nonlinear interaction section and the segmented units. The ends of the electron beam channel and microwave transmission channel have an output window. The nonlinear interaction section, the multiple segmented units, and the output window cause microwaves to undergo a series of reflections, resulting in phase superposition and cancellation. This invention, while maintaining the output window parameters, significantly reduces the number of secondary and reflected electrons impacting the output window, thereby effectively improving the power capacity of the structure. This structure has the advantages of convenient fabrication and simple process implementation. This invention can be used in all high-power gyrotrons with axial output modes.
Owner:NO 15 INST OF CHINA ELECTRONICS TECH GRP

Delay measurement system and method for optical microwave transmission link

The invention discloses a delay measurement system and method for a microwave over fiber transmission link, and belongs to the technical field of microwave photonics. The modulator is used for modulating the radio-frequency signal generated by the radio-frequency signal generator to an optical carrier and generating modulated light containing + / -1-order sidebands; the radio frequency signal is a dual-tone signal with the frequency range of 30 GHz to 70 GHz; the frequency shift unit is used for performing frequency shift on the modulated optical signal; and the dual-optical mixing unit is used for mixing the return signal and the reference signal and converting the phase shift direct detection of the high-frequency signal into the relative phase shift detection of the intermediate-frequency signal. A dual-tone signal is modulated into a 1550nm optical carrier, + / -1-order sidebands are separated through a dual-optical mixing structure, intermediate frequency signals of the + / -1-order sidebands are detected through a balanced photoelectric detector, and phases are detected, so that link transmission delay is calculated. The problem of phase ambiguity of high-frequency signals during large-range measurement is solved, and large-range absolute delay measurement is realized.
Owner:BEIJING INST OF TECH

Heater assembly and aerosol-generating device comprising same

This heater assembly comprises: an oscillation unit that generates microwaves; a resonance unit that comprises an insertion space in which an aerosol-generating article is accommodated, and that heats the aerosol-generating article by resonance of the microwaves; and a microwave output unit that transmits the microwaves generated by the oscillation unit to the resonance unit, wherein the microwave output unit connected to the oscillation unit is screw-coupled to one region of the resonance unit, thereby coupling the oscillation unit to the resonance unit.
Owner:KT&G CO LTD

Electromagnetic wave space conduction blocking structure of microwave transmission system

The invention provides an electromagnetic wave space conduction blocking structure of a microwave transmission system. The electromagnetic wave space conduction blocking structure comprises a strip-shaped box body, a shielding cover plate covers the box body, the box body and the shielding cover plate form a strip-shaped closed inner cavity, a first microwave subsystem and a second microwave subsystem are respectively mounted at two ends of the inner cavity, the first microwave subsystem and the second microwave subsystem are connected through a microwave circuit, an inward boss structure is arranged in the middle of the shielding cover plate, and the boss structure abuts against the microwave circuit. According to the invention, the cover plate and the retaining wall are fused into the inverted cavity, so that the complexity of the microwave partition cavity is simplified, and the retaining wall is reasonably arranged, so that the isolation of the microwave transmission system is further improved; by using the substrate integrated waveguide, the retaining wall can be directly contacted with the transmission line so as to be tightly contacted with the printed board, transmission of leaked electromagnetic signals in the inner cavity of the microwave assembly can be completely blocked through structure fastening and conductive material filling, and signal crosstalk of a system is thoroughly avoided.
Owner:GUIZHOU AEROSPACE ELECTRONICS TECH CO LTD

System For Focused Microwave Transmission

Technology is disclosed herein for a system, devices, and methods for microwave focusing in various implementations. In an implementation, a computing device identifies a location for receiving focused microwave emissions from an array of antennas. The computing device determines an optimal antenna configuration for illuminating the location by the microwave emissions based at least on a configuration of the array and causes the antennas to illuminate the location according to the optimal antenna configuration. In an implementation, the computing device determines the optimal antenna configuration for illuminating the location based on a spatial distribution of material properties of a volume which includes the location. In an implementation, the spatial distribution is based on imaging data of the volume. In various implementations, the configuration of the array includes a spherical or cylindrical distribution of antenna positions.
Owner:THE REGENTS OF THE UNIVERSITY OF COLORADO

Microwave irradiation device

A microwave irradiation device (100) comprises: a first chamber (11) in which an object (OB) is accommodated; a second chamber (12) provided in a lower portion of the first chamber (11); partition parts (31, 32) spatially partitioning the first chamber (11) and the second chamber (12); and an irradiation antenna (21) provided in a lower portion of the second chamber (12) to irradiate microwaves into the second chamber (12). The partition parts (31, 32) at least partly allow the microwaves irradiated into the second chamber (12) by the irradiation antenna (21) to be transmitted into the first chamber (11).
Owner:SHIKOKU INSTR CO LTD +1

Metal microwave discharge spectrum continuous monitoring system and method

The invention provides a metal microwave discharge spectrum continuous monitoring system and method, and belongs to the technical field of spectrum monitoring. The system comprises a microwave radiation unit used for generating and transmitting microwave signals, and the microwave radiation unit comprises a microwave generator and a microwave transmission device; the discharge reaction cavity is made of a material with high temperature resistance, corrosion resistance and good microwave permeability, and is used for accommodating a metal sample and preventing harmful substances from leaking; the optical signal acquisition unit comprises a multi-channel photosensitive sensor array and is used for acquiring optical signals generated by metal discharge in real time; the optical resistance conversion unit is designed based on an optical resistance principle and is used for converting the optical signal into a resistance signal; and the data acquisition and processing unit is connected with the optical resistance conversion unit and is used for acquiring the resistance signal and converting the resistance signal into spectral data. The optical resistance conversion technology is utilized, the defects of the existing monitoring technology are overcome, and continuous and accurate monitoring of the metal microwave discharge spectrum is achieved.
Owner:SHANDONG JIANZHU UNIV

A rangeable microwave detection system and method based on a flexible antenna array

The application provides a flexible antenna array-based distance-measurable microwave detection system and method, which comprises a control device, a display device and a transmitting and receiving device; the control device is provided with a transmitting line and a receiving line; the executing unit of the transmitting and receiving device is a plurality of flexible antennas, each of the flexible antennas is a monopole microwave antenna, and is provided with a metal pattern etched and printed on a peripheral side, and at least one H-shaped main pattern and two rectangular auxiliary patterns, the rectangular auxiliary patterns are located in the lateral blanking areas of the H-shaped main pattern. The application has the advantages of simple structure and low cost, the device adopts the flexible combined metal pattern antenna design, reduces the equipment volume to make it portable, improves the flexible arrangement of the system in the detection aspect, and improves the detection accuracy; further, in the corresponding method, the establishment of the reference model is realized through the high and low frequency combined microwave transmission, and the abnormal area is marked on the basis, so that the high accuracy can be maintained, and the basic detection requirements after miniaturization can be met.
Owner:UNIVERSITY OF HEALTH & REHABILITATION SCIENCES

An excitation structure and microwave oven

ActiveCN121310329BMicrowave ovenHorn antenna
The embodiment of the present application provides a kind of excitation structure and microwave oven, excitation structure includes waveguide horn antenna and surface wave generating component, waveguide horn antenna has microwave transmission channel, surface wave generating component has surface wave generating cavity, the surface wave generating component is open along the circumferential side, to make the side of the surface wave generating cavity form the communication port that communicates with outside, the microwave transmission channel is communicated with the surface wave generating cavity by the communication port, and part of the area of the waveguide horn antenna is located outside the surface wave generating cavity, another part of the area of the waveguide horn antenna is located in the surface wave generating cavity.The excitation structure of the embodiment of the present application can improve the use volume rate.
Owner:GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD +1

A microwave transmission conductor and a microwave transmission device

This invention provides a microwave transmission conductor and a microwave transmission device, relating to the field of microwave transmission; it includes: a first conductor, one end of which has a receiving groove and a sealing plate assembly fixedly connected to its end face; a shaped rod, one end of which extends into the receiving groove and is rotatably inserted into the first conductor, with a rolling element provided between the shaped rod and the sealing plate assembly, and a first elastic clamping member providing axial pressure between the shaped rod and the bottom wall of the receiving groove; a first connecting portion provided at the other end of the shaped rod; a rotating sleeve sleeved on the outside of the shaped rod and in circumferential upper limit engagement with the shaped rod; and a rotatable engagement between the rotating sleeve and the end face of the first conductor; a second conductor abutting the end of the rotating sleeve away from the first conductor, and having a second connecting portion provided at its end facing the first conductor; the second connecting portion and the first connecting portion are detachably fixedly connected. This application allows relative rotation between the conductors, effectively absorbing torsional loads and preventing conductor damage due to torsional fatigue.
Owner:CHENGDU WATERSINE ELECTRONIC TECH CO LTD