314 results about "Microwave transmission" patented technology

A microwave oven includes a housing defining an interior cavity, a magnetron positioned within the housing and outside of the interior cavity and a micro-wave antenna in electrical communication with the magnetron and positioned adjacent a lower surface of the interior cavity. The microwave oven further includes a heating plate that includes a glass-ceramic substrate defining at least a portion of the lower surface of the interior cavity. The heating plate further includes a resistive-heating coating applied on a portion of the glass-ceramic substrate and defining at least one open micro-wave transmissive path from the micro-wave antenna to the interior cavity.

The invention relates to a self-adaptive frequency optimization system in radio and television microwave transmission, and the system comprises an initial audio collection and processing module which collects an audio signal of a current frequency channel in real time, and generates a first data set; the conversion audio acquisition processing module synchronously acquires a target channel signal according to the frequency switching signal, and calculates the loudness offset between two channels; a feature extraction module extracts frequency domain energy distribution feature vectors of the first data set and the second data set; the model construction module constructs a dynamic gain compensation model and generates a compensation value of a target channel; the tone quality compensation module performs smoothing processing on the compensation value to generate an optimized third data set; and the audio optimization module updates model parameters, dynamically adjusts a frequency domain analysis strategy, and outputs low-delay and high-stability radio and television transmission signals. According to the invention, the problems of high switching delay and degraded tone quality caused by static configuration in a traditional scheme are solved, and the transmission efficiency and user experience in a complex electromagnetic environment are remarkably improved through modular dynamic calibration and compensation.

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.

Systems, methods, and apparatus for multiplexed control and readout of quantum computing systems that can include qubits, couplers, and other related quantum computing circuit devices. Numerous examples of superconducting quantum computing systems are described that include some, or all, of these quantum computing circuit devices integrated into a superconducting quantum circuit that can be interfaced by a classical control system. In one example, a superconducting circuit is described. The superconducting circuit includes: a superconducting device including a superconducting loop interrupted by one or more Josephson junctions; a first microwave resonator inductively coupled to the superconducting loop of the superconducting device; a second microwave resonator capacitively coupled to the superconducting device, where the first and second microwave resonators each have a different fundamental frequency; and a microwave transmission line evanescently coupled to each of the first and second microwave resonators.

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.

A nonreciprocal microwave transmission device includes a substrate, a transducer on a surface of the substrate and configured to reciprocally convert between electrical signals to acoustic waves, a first piezoelectric material configured to generates and transports acoustic waves from a signal applied to the transducer, and a thin film magnetic material configured to couple to acoustic waves through magnetoelastic coupling so as to have non-reciprocal magnetoelastic coupled acoustic wave transport. Transmission of acoustic waves through the thin film magnetic material is in a direction toward the transducer has a first magnitude and transmission of acoustic waves through the thin film magnetic material in a direction away from the transducer has a second magnitude, the first and second magnitude being significantly different.

The invention belongs to the technical field of microwave sources in the high-power microwave technology, and particularly relates to a compact full-cavity extraction relativistic magnetron based on metamaterials. Compared with a traditional full-cavity extraction relativistic magnetron based on a metamaterial resonance structure, the compact full-cavity extraction relativistic magnetron based on the metamaterial resonance structure introduces a microwave transmission region behind an anode, and also introduces a metamaterial structure into the microwave transmission region; through the design, microwaves can be radially coupled and output behind the resonant cavity, so that an excitation system can be directly loaded outside the anode block, the inner diameter size of the excitation system is effectively reduced, the miniaturization advantage of the metamaterial is fully played, and the compactness and the light miniaturization degree of the whole high-power microwave system are further improved.

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.

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.

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.

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.

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.

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.

The spin-orbit torque-based device comprises a microwave transmission layer and a microwave absorption layer, and the microwave absorption layer is arranged on the upper surface of the microwave transmission layer; the microwave transmission layer is a CPW coplanar waveguide, and the microwave absorption layer is a ferromagnetic layer / strong spin coupling layer heterojunction. Through the heavy metal / ferromagnetic layer heterojunction, spin-orbit torque is generated by the spin Hall effect in the heavy metal layer to influence the magnetic property of the ferromagnetic layer, the current is directly used as a regulation and control mode, an electromagnet or coil current does not need to be additionally arranged outside the device, and the problem of large size is solved. Meanwhile, the spin-orbit torque is actually regulated and controlled by the current density, microwave tuning of milliampere-level current is achieved by controlling the size of a device, the advantage of low power consumption is achieved, and meanwhile the potential of constructing a device with extremely low power consumption is achieved. And the functional layer can be realized only by the coplanar waveguide and the double-layer film heterojunction, so that the structure is simple and clear.

The invention relates to the technical field of network communication, and particularly discloses a network communication system and method for a high-cold high-altitude hard region, and the system comprises a signal enhancement and path optimization module which generates a plan about a beam dynamic adjustment parameter and transmitting power through a matrix antenna in combination with environment data obtained in real time; the hybrid communication module selects any one of microwave transmission, satellite communication and ground mobile communication according to an intelligent algorithm so as to execute the plan; and the monitoring maintenance module analyzes the basic state of the communication equipment obtained in real time to obtain a predicted potential fault, and generates a maintenance strategy corresponding to the predicted potential fault according to the expert knowledge base. According to the invention, through reasonable planning of a transmission path, signals are prevented from passing through complex terrains and atrocious climate areas in a transmission process, so that attenuation and interference of the signals are reduced.

The invention discloses a high-efficiency signal transmission method and system of integrated microwave transmission equipment, and relates to the related field of wireless transmission, and the method comprises the steps: obtaining a target signal sending point and a target signal receiving point, on a 13GHz frequency band, selecting a target channel by using a Wi-Fi6 channel binding technology, and carrying out subcarrier division on a frequency spectrum of the target channel by using an OFDMA technology to obtain K subcarriers; carrying out transmission quality analysis to obtain K subcarrier transmission quality factors; performing modulation mode and coding redundancy double-term equilibrium analysis, and determining K modulation modes and K coding redundancies; carrying out modulation and transmission data coding on the K subcarriers by utilizing Wi-Fi6; and carrying out signal transmission of K pieces of coding redundancy transmission data between the target signal sending point and the target signal receiving point based on the K modulated subcarriers. The technical problems that existing signal transmission is low in transmission efficiency and poor in stability are solved, and the technical effect of improving the signal transmission efficiency and stability is achieved.

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.

The invention relates to a forming and surface treatment method of a twisted waveguide, and belongs to the field of metal additive manufacturing technology and surface treatment. The manufacturing technical problems that parting manufacturing precision and reliability are poor, torsional deformation and position tolerance of torsional forming are not easy to guarantee, and a welding position is prone to deformation are solved, and the problem that a twisted waveguide not plated with a copper layer is large in microwave transmission loss is solved. The method comprises the following steps: modeling a designed twisted waveguide, and completing support adding and slicing processing; aluminum alloy powder is added into a forming equipment material cylinder; performing selective laser melting forming by adopting the slice file to obtain a twisted waveguide with a substrate and a support; separating the twisted waveguide from the substrate and the support; carrying out finishing processing on the twisted waveguide by adopting chemical polishing; and plating the twisted waveguide by adopting chemical plating to obtain the twisted waveguide with the plating layer. The additive manufacturing integrated forming and surface treatment process is adopted, the production period is effectively shortened, the product quality reliability is improved, and the microwave transmission loss is reduced.

The invention relates to the technical field of microwave treatment, in particular to a microwave treatment system with multiple safety monitoring functions, which comprises a temperature field monitoring module, a standing wave detection module, an impedance analysis module, a contact state detection module, a power decision module and an emergency control module, the temperature field monitoring module generates biological tissue temperature distribution data; the standing wave detection module calculates a standing wave coefficient of a microwave transmission path; the impedance analysis module outputs an impedance change rate; the contact state detection module is combined with the impedance change rate to generate a contact safety index; the power decision module generates a dynamic power adjustment instruction; the emergency control module detects a standing wave coefficient gt; 2.5, the impedance change rate gt; 40% / s or contact safety index lt; and when 0.7, a three-level gradient braking strategy is started. According to the invention, the capability of early warning risk factors such as thermal field abnormity, energy coupling mismatch and poor contact is effectively improved.

The invention relates to the technical field of material physical property testing, in particular to a ferromagnetic resonance linewidth automatic testing system and method, and the system comprises a main control unit, a signal generator, a spectrum analyzer, a magnetic field generation device, a gauss meter, a microwave transmission structure and two attenuators. The signal generator, the spectrum analyzer, the magnetic field generation device and the gauss meter are electrically connected with the main control unit, one attenuator is connected between the signal generator and the microwave transmission structure, the other attenuator is connected between the microwave transmission structure and the spectrum analyzer, and a crystal oscillator synchronization line is connected between the spectrum analyzer and the signal generator. The method comprises the following steps of: scanning point by point to read the readings of a spectrum analyzer influenced by a sample under different frequencies and different magnetic field intensities, and performing data curve fitting according to three groups of data of the frequency, the magnetic field intensity and the power to obtain a ferromagnetic resonance line width result of the sample; the signal generator and the spectrum analyzer are cheaper than the network analyzer.

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.

Superconducting integrated circuits may advantageously employ superconducting resonators coupled to a microwave transmission line to efficiently address superconducting flux storage devices. In an XY-addressing scheme, a global flux bias may be applied to a number of superconducting flux storage devices via a low-frequency address line, and individual superconducting flux storage devices addressed via application of high-frequency pulses via resonators driven by the microwave transmission line. Frequency multiplexing can be employed to provide signals to two or more resonators. A low-frequency current bias may be combined with a high-frequency current in one or more superconducting resonators to provide Z-addressing. A low-frequency current bias may be combined with a high-frequency current in one or more superconducting resonators to eliminate a flux bias line. A low-frequency current bias may be used at room temperature to identify the presence of a DC short, an open, and / or an unexpected resistance in a superconducting resonator.

The invention discloses a thick oil well microwave-assisted steam oil extraction device and a using method thereof, the thick oil well microwave-assisted steam oil extraction device comprises an oil extraction lifting system connected with a steam injection system, and the thick oil well microwave-assisted steam oil extraction device is characterized by further comprising a microwave heating system connected with a shaft pipe column of the oil extraction lifting system. The microwave heating system comprises a microwave generating device, a microwave waveguide tube bundle and a microwave heating short section which are connected in sequence; the microwave generating and transmitting device can generate microwaves, and the microwaves are transmitted to the microwave heating short section through the microwave waveguide tube bundle. The temperature and dryness of high-temperature steam can be maintained when the high-temperature steam is conveyed along a shaft, the fluidity of thickened oil during extraction can be improved, and the requirement for heat preservation and dryness protection in the whole steam huff and puff extraction process of the thickened oil can be met.

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.

The invention discloses a high-power microwave transmission line rotary joint, and relates to the field of high-power microwave conduction, an output shaft and an input shaft which are coaxially connected are adopted, and an insertion connection structure is designed and comprises insertion ports with different diameters, bushings, O-shaped sealing rings and the like, so that the stability and the coaxiality of shaft connection are enhanced, and the signal loss is reduced; the joint copper ring and the joint beryllium copper are selected as conduction parts, and good conductivity of the joint copper ring and the joint beryllium copper is utilized, so that resistance heat loss is reduced, and signal transmission efficiency is improved; meanwhile, by means of the design of the joint conductive contact finger and the hook-shaped or conical beryllium copper, guiding and positioning of assembly are optimized, convenience and accuracy of assembly are improved, perfect sealing protection measures are further arranged, a series of problems existing in the prior art are effectively solved, and the service life of the connector is prolonged. And a more reliable and efficient rotary joint solution is provided for high-power microwave transmission.

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.

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.

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.

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.

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.