104 results about "Microwave band" patented technology

The invention discloses a differential signal synthesis circuit of a double-IQ mixer, which belongs to the technical field of radio frequency microwave testing and comprises two single-ended IQ mixing modules, a 180-degree phase shift module and an in-phase combination module or a power division module. The single-ended IQ frequency mixing module is used for up-converting the single-ended IQ baseband signal to radio frequency or down-converting the radio frequency signal to the single-ended IQ baseband signal; the 180-degree phase shift module is used for converting an input signal into two paths of signals with a phase difference of 180 degrees; and the power division module is used for converting the radio frequency input signal into two paths of signals with the phase difference of 0 degree. According to the invention, the IQ mixer with a differential structure is constructed, so that the microwave band of the IQ mixer is comprehensively improved in the index aspects of local oscillator leakage, even-order component suppression, common-mode interference suppression, signal-to-noise ratio and the like; according to the invention, single-ended IQ mixers with various types and complete frequency bands can be constructed into a differential structure form, and signal indexes in numerous application scenes are improved.

The invention provides an all-dielectric film system structure with visible near-infrared high absorption, intermediate infrared selective radiation and microwave high transmission. The all-dielectric film system structure sequentially comprises a protection and antireflection layer, a visible near-infrared absorption and infrared selective radiation layer and a substrate layer from top to bottom, the protection and antireflection layer comprises a first dielectric layer and a second dielectric layer which are arranged up and down; the visible near-infrared absorption and infrared selective radiation layer comprises a plurality of third dielectric layers and fourth dielectric layers which are alternately stacked. According to the structure, high absorption can be achieved in the wave band of 380-1100 nm, high reflection (low radiation) can be kept in the wave bands of 3-5 m and 8-14 m, high transmissivity is achieved in the microwave wave band, certain radiation can be kept in the wave bands of 5-8 m and 14-25 m, and effective heat management is achieved. The all-dielectric film system structure also considers the stability of the material in a space environment, and is provided with a protection and antireflection layer, so that the potential application reliability of the film system is improved.

The invention provides an all-dielectric film system structure with visible near-infrared low transmission vegetation simulation, intermediate infrared high reflection and microwave high transmission. The device sequentially comprises, from top to bottom, a visible near-infrared simulated vegetation layer which is composed of first to fourth dielectric layers and is configured to simulate vegetation reflection spectrum characteristics in a wave band of 380-2500 nm and has a low transmission characteristic; the intermediate infrared high-reflection layer is formed by alternately stacking a first dielectric layer and a third dielectric layer, and is configured to form high reflection in a wave band of 3-14 microns; and a substrate layer; the thickness of the whole film layer is far smaller than the microwave wavelength, so that the film system keeps high transmission in the microwave band. According to the invention, the amorphous InSb material with high loss characteristic in visible near-infrared light is introduced, so that the average transmissivity of 1500-2500 nm is reduced to 0.095 while high-precision simulation of the vegetation reflectivity spectrum is realized, thereby realizing simulation of low transmissivity of the wave band vegetation.

The invention discloses a trace biochemical sensor based on deep sub-wavelength singular point resonance, the sensor comprises an upper metal layer, a middle dielectric layer and a lower metal layer which are stacked in sequence from top to bottom, the upper metal layer is a deep sub-wavelength singular point resonance structure pattern, the lower metal layer is an excitation microstrip line, and the middle dielectric layer is a deep sub-wavelength singular point resonance structure pattern. Resonance of the deep sub-wavelength singular point resonance structure pattern is excited by the excitation microstrip line. By effectively adjusting the rotation angle of the deep sub-wavelength singular point resonance structure graph, the resonance mode field of the sensor is gradually evolved into a singular point resonance mode from a hybrid bonding and anti-bonding intrinsic resonance mode. According to the sensor, the equivalent working wavelength of the deep sub-wavelength artificial local surface plasmon resonance unit is compressed, and the electromagnetic field enhancement characteristic of a singular point resonance mode and the square root dependency relationship of tiny dielectric disturbance are combined, so that the high-sensitivity resolution of trace biochemical quantity is realized in a low-frequency microwave band.

A polarization conversion transmission type reconfigurable metamaterial structure with amplitude-phase independent regulation and control is formed by copying and translating n * n basic units, and each basic unit comprises three dielectric layers, five metal layers and two air layers; the dielectric layers comprise a first dielectric layer, a second dielectric layer and a third dielectric layer from top to bottom; a first air layer is arranged between the first dielectric layer and the second dielectric layer, and a second air layer is arranged between the second dielectric layer and the third dielectric layer; the amplitude regulation and control layer is located on the upper surface of the first dielectric layer, and the amplitude regulation and control bias circuit layer is located on the lower surface of the first dielectric layer; the polarization conversion phase regulation and control layer is located on the upper surface of the second dielectric layer, and the polarization conversion phase regulation and control bias circuit layer is located on the lower surface of the second dielectric layer; the polarization gate layer is located on the upper surface of the third dielectric layer. According to the invention, efficient electromagnetic regulation and control in a transmission mode are realized, independent regulation and control in two dimensions of amplitude and phase are realized, and unification of high transmissivity and accurate regulation and control in a microwave frequency band is realized.

The invention discloses a method and device for establishing a moon infrared microwave radiation calibration model, and the method comprises the steps: obtaining an indication parameter of the radiation energy expression of the moon at a target moment in a reference remote sensing satellite observation wave band, and obtaining the radiation energy of the moon at the target moment; a plurality of reference remote sensing satellites or target moments are provided; the observation wave band comprises an infrared wave band and / or a microwave wave band; the indication parameters comprise the distance between the sun and the moon, a first angle parameter of the sun irradiating the moon and a second angle parameter of the reference remote sensing satellite observing the moon; and based on the indication parameters and the radiation energy corresponding to the indication parameters, training a pre-established neural network model to obtain a moon infrared microwave radiation calibration model. According to the method and device for establishing the moon infrared microwave radiometric calibration model, artificial intelligence and the moon infrared microwave radiometric calibration model are effectively combined, and the high-precision moon infrared microwave radiometric calibration model can be established.

A dual-frequency dual-polarization shared aperture antenna with mode diversity belongs to the technical field of wireless communication and antennas, comprises a metal floor, Vivaldi antenna left and right ridge metal radiators, a conical monopole antenna, a dielectric polarization converter and two coaxial feed wires, and adopts a side coaxial line for feeding; wherein the metal radiator and the conical monopole radiator are of a composite integrated structure; the interior of the conical monopole radiator is hollow, and the two metal radiators are symmetrically arranged at the bottom of the conical monopole radiator. According to the antenna, dual-frequency dual polarization is achieved, microwave and millimeter wave frequency bands can be covered, the two frequency bands are mutually independent and wide, and the antenna has an omnidirectional radiation mode and a directional radiation mode at the same time; the dual-frequency dual-polarized antenna with multi-mode diversity has a good and stable omnidirectional radiation pattern in a microwave band, is in a circular polarization radiation mode in a millimeter wave band, has high-gain directional radiation capability, and can be applied to various applications such as UWB (Ultra Wideband), 5G millimeter wave communication and the like.

To provide an information processing system, etc. capable of allowing an electromagnetic wave to penetrate into a measurement part 4 easily.SOLUTION: A measuring apparatus includes a radiation unit, a first dielectric body, and a measuring unit. The radiation unit is configured to radiate an electromagnetic wave of a microwave band or a millimeter wave band. The first dielectric body is configured to transmit the radiated electromagnetic wave. The measuring unit is arranged at a position that the electromagnetic wave reaches through the first dielectric body and a measurement part in a state that the first dielectric body is in close contact with the measurement part of a human body, and is configured to measure the electromagnetic wave that has reached the position.SELECTED DRAWING: Figure 1

The invention relates to the technical field of terahertz wave application, in particular to a terahertz low-pass filter based on a frequency selective surface, which comprises a first dielectric layer, a second dielectric layer, a third dielectric layer, a first metal layer and a second metal layer. The first dielectric layer, the second dielectric layer and the third dielectric layer are stacked in sequence; the first metal layer is arranged on the surfaces of the first dielectric layer and the third dielectric layer, and the first metal layer is formed by arranging four metal sheets in a square shape; the second metal layer is arranged between the first dielectric layer and the second dielectric layer and between the second dielectric layer and the third dielectric layer, and the second metal layer is of an annular structure with a through hole. According to the terahertz wave filter, the filtering effect on terahertz waves can be achieved, the working frequency band can cover a microwave band and a terahertz band, the cut-off frequency of the terahertz wave filter can be regulated and controlled, and the cut-off frequency range of the terahertz wave filter is 0.01-1 THz; the device is simple in structure and low in preparation difficulty; the band-pass filter has high transmissivity in a passband, and has a good stop-band suppression characteristic at a high frequency.

The invention provides a method and a device for calculating microwave band transmission characteristics of a dielectric inlaid multilayer metal net. The method comprises the following steps: enabling a medium embedded multi-layer metal net to be equivalent to a single-layer Dyde dispersion model; under the single-layer Dyde dispersion model, obtaining an incident wave angular frequency; the incident wave angular frequency is substituted into a preset final dispersion equivalent formula, and the relative dielectric coefficient of the single-layer Dyde dispersion model is obtained through calculation; and on the basis of the relative dielectric coefficient and an SO-FDTD method, a microwave band transmission characteristic result of the dielectric inlaid multilayer metal net is obtained through calculation. A medium inlaid multilayer metal net is equivalent to a single-layer Dyde dispersion model, and the overall transmission coefficient is calculated through a final dispersion equivalent formula obtained through final fitting, so that the complex electromagnetic response of a multilayer structure can be simplified into a single and easy-to-process model on the premise of keeping the consistency of physical properties, and the overall transmission coefficient is calculated. On the premise of keeping sufficient physical accuracy, the calculation efficiency is improved, and the resource consumption is reduced.

The application relates to the technical field of infrared stealth, precise thermal control and electromagnetic compatibility, and particularly discloses a film system structure with visible ultra-high reflectivity, middle-infrared and far-infrared low emissivity and microwave high permeability; the medium stack layer has high reflectivity to visible light; the metal microstructure layer has low emissivity to middle-infrared and far-infrared light and high permeability to microwaves; the film system structure has visible light reflectivity greater than 60%, middle-infrared and far-infrared light emissivity lower than 30% and microwave permeability higher than 60%. The application realizes perfect compatibility of infrared stealth and microwave absorption, keeps infrared low emissivity (epsilon < 0.1) and realizes high permeability (greater than 95%) to 1-18GHz microwave bands. The application solves the thermal failure problem of the composite stealth structure, realizes average visible light reflectivity (greater than 95%) through the medium stack layer, greatly reduces the solar heat load and improves the overall optical performance.

The invention relates to an asymmetric transmission wavefront modulation method based on a multilayer metasurface, and belongs to the technical field of polarization optics application. The problems that an existing metasurface unit is complex in structure and has symmetrical transmission limitation are solved. The cascaded metal grating and the metal'bidirectional arrow 'are used as basic structure units, the spatial symmetry in the electromagnetic wave propagation direction is broken, the asymmetric transmission characteristic is obtained, meanwhile, full-range phase modulation is achieved, electromagnetic waves incident in the two directions can be independently regulated and controlled by changing the size parameters of the unit structures, and the structure is simple. Corresponding deflection and convergence effects are achieved respectively. Therefore, the invention provides a microwave band sub-wavelength unit structure, which has the advantages of easiness in design, easiness in processing and the like, has an asymmetric property, and is applied to the fields of holographic display, information encryption and the like.

This invention discloses a visible transparent, ultra-wideband microwave absorption structure, comprising, from top to bottom, a visible transparent spatial shielding layer, an impedance-gradient absorption layer, and a total reflection bottom layer. The spatial shielding layer is highly transparent to the microwave band. The impedance-gradient absorption layer is composed of multiple layers of low-dielectric-constant transparent dielectric substrates and an array of transparent conductive patterns disposed thereon, stacked alternately. The total reflection bottom layer is totally reflective to the microwave band. By precisely designing the gradient period and equivalent resistance of the multilayer transparent conductive pattern array, and utilizing the electromagnetic coupling and multi-point resonance mechanism of the upper and lower layers, this invention achieves ultra-wideband microwave strong absorption of more than 90% in the 1-40 GHz frequency band at the subwavelength scale, breaking through the bandwidth limitation bottleneck of traditional microwave absorbing structures; and it also possesses excellent visible light transparency characteristics.

The application discloses a visible light-infrared-microwave compatible imaging metasurface, and relates to the technical field of electromagnetic compatibility, which comprises a surface infrared emission layer, an intermediate microwave functional layer and a reflective backboard; the surface infrared emission layer is attached to the lower surface of the intermediate microwave functional layer, and the reflective backboard is attached to the lower surface of the intermediate microwave functional layer; the surface infrared emission layer comprises two kinds of frequency selection surface structures with different duty cycles; the microwave functional layer is in a circular arc structure; a picture is attached to the bottom of the reflective backboard; by combining the surface infrared emission layer, the intermediate microwave functional layer and the reflective backboard, the false image effect can be generated in the visible light, infrared and microwave bands simultaneously, and the problem that the conventional metasurface is difficult to realize multi-spectrum compatibility is solved.

The invention discloses a CaLaPrNdGdFeO perovskite high-entropy ferrite wave-absorbing material as well as a preparation method and application thereof, and belongs to the technical field of electromagnetic wave absorbing materials. The chemical composition of the material is (Ca < 0.2 > La < 0.2 > Pr < 0.2 > Nd < 0.2 > Gd < 0.2 >) FeO3. The preparation method comprises the following steps: dissolving metal nitrate and a complexing agent in water, adjusting to alkalescence to obtain a metal ion-complexing agent solution, heating to obtain gel, aging, drying and carrying out self-propagating reaction to obtain precursor xerogel; and then grinding, pre-sintering and carrying out heat treatment. The ferrite wave-absorbing material composed of the equimolar high-entropy components fully solves the disadvantages of narrow effective wave-absorbing frequency band and poor low-frequency performance stability of the traditional ferrite, has the advantages of strong synthesis stability, good oxidation resistance, high absorption efficiency and stable performance, can absorb electromagnetic waves in the microwave band of 2-18 GHz, and has a wide application prospect. And the material can be used in the fields of stealth coatings, electromagnetic shielding, 5G communication devices and the like.

The invention discloses a thermal radiation and microwave collaborative intelligent regulation device structure and a preparation method thereof, and belongs to the field of electromagnetic wave intelligent regulation. The problem that an existing device is difficult to achieve dynamic decoupling and coupling regulation and control between infrared and microwave bands is solved. The invention discloses a thermal radiation and microwave collaborative intelligent regulation and control device structure, which consists of a top VO2 layer, a SiO2 layer and a bottom VO2 layer in sequence from top to bottom. The preparation method comprises the following steps: 1, pretreatment; and 2, preparing a VO2 layer. The invention is used for the thermal radiation and microwave collaborative intelligent regulation and control device structure and the preparation thereof.

This invention relates to the field of optical imaging technology, specifically providing an optical radar co-aperture off-axis imaging system, comprising: an off-axis mirror assembly, a frequency-splitting device, a radar transceiver system, and an optical imaging system. The frequency-splitting device is disposed in the rear optical path of the secondary mirror and is used to reflect light waves and transmit microwaves. The frequency-splitting device includes a frequency-selective surface, which comprises an FSS pattern layer and a bias line layer. The FSS pattern layer includes periodically arranged FSS units. Nonlinear capacitors are electrically connected to the FSS units. The bias line layer applies a voltage to the nonlinear capacitors according to the received microwave band. By changing the voltage applied to the nonlinear capacitors, the resonant frequency of the FSS units is tuned, thereby changing the microwave passband frequency of the frequency-splitting device. This invention not only achieves a reflective wave-transmitting microwave design but also solves the problem that transmitting only a single band of microwaves in microwave-transmitting and light-reflecting methods is difficult to adapt to different task requirements.

A System and method for producing K-Net devices and improving a K-Net communication network on which the devices run to provide electronic services. A divided Net Extender extends the wireless network. K-Net devices utilize a modem card as an internal or external modem over Wi-Fi, cellular, millimeter wave and microwave bands. A processor on a circuit board coupled to a G chip or traffic controller chip embedded with a network control protocol and coupled to a dedicated cache memory manages networking of mobile devices and autonomous vehicles from a Local Area Network (LAN) manager device. A geographical internet protocol (Geo IP) enhances security. The modem connects to a wireless router device that runs a card control protocol, wherein the router plugs into the LAN manager device, connecting to internal and external DNS servers, GIP allocation and authentication servers. Devices are self-powered by alternating current generated from a direct current.

The invention discloses a cereal crushing impurity detection method and device based on a spectral imaging and deep learning hybrid network, belongs to the technical field of spectral analysis, and realizes accurate sparse selection of spectral features by constructing a feature wavelength extraction method with microwave band gating and physical prior constraint. By combining importance sorting and grouping fusion of the multi-dimensional characteristic wave bands, the effectiveness of the spectral characteristic image is improved; a detection model is constructed by taking lightweight GrainCINet as an encoder and layer-by-layer up-sampling fusion as a decoder, a multi-target parameter optimization strategy combining grid search preliminary screening with Bayesian iterative optimization is adopted, detection result comprehensive identification is carried out through category voting, on the basis, the crushing and impurity-containing condition of a sample is calculated through category pixel density and proportion, and the detection accuracy is improved. Finally, efficient, accurate and robust detection of the crushed grains and impurities of the grains is achieved, and the actual application requirements of grain quality detection are met.

Aiming at the deficiencies in the morphology and structure of NdFeO3 microwave-absorbing fine powders, the structure and morphology of the materials are improved through temperature processes. An open-pored peanut-shaped perovskite-type NdFeO3 microwave-absorbing fine powder material is invented and designed. The preparation method is as follows: Weigh neodymium(III) nitrate hexahydrate and iron(III) nitrate nonahydrate in a certain proportion, and then add citric acid monohydrate and ammonia water. The NdFeO3 microwave-absorbing fine powder is prepared by the sol-gel method. By controlling the pH, sintering temperature, and sintering time, peanut-pored perovskite-type NdFeO3 microwave-absorbing fine powder is prepared. It has good microwave absorption performance in the 15 - 18 GHz microwave band, and the particles are generally in the shape of neat and regular rice grains, providing the possibility for coating the material surface in the later stage to prepare directional reflection components. At the same time, by controlling the drying temperature, the process operation is made easy.

The invention provides a flexible cross-band compatible electromagnetic camouflage metasurface and a preparation method thereof, and the metasurface achieves high-absorptivity electromagnetic camouflage of visible-infrared bands through a micro-nano feature structure formed by a metal-dielectric material, and achieves high transmittance in a microwave band through the design of gaps of periodic patterns. The preparation method comprises the following steps: preparing the cross-band compatible electromagnetic camouflage structure on a hard substrate, and transferring the cross-band compatible electromagnetic camouflage structure to a flexible substrate through wet stripping or laser stripping and other processes. According to the invention, a visible-infrared wave-absorbing structure and a microwave transmission structure are organically integrated to form a cross-band compatible electromagnetic camouflage function layer, and the cross-band compatible electromagnetic camouflage function layer can be transferred to a flexible substrate to realize conformal fitting of complex curved surfaces such as a radome.

The utility model provides a cement-based electromagnetic wave-absorbing superstructure based on a stranded cable structure, a substrate of the cement-based electromagnetic wave-absorbing superstructure is made of a cement-based flat plate material, and a cement-based stranded cable periodic structure is arranged on the surface of the cement-based electromagnetic wave-absorbing superstructure. The cement-based electromagnetic wave-absorbing superstructure can achieve the technical index of excellent wave-absorbing performance, has the characteristics of wide frequency band and wide-angle wave-absorbing, and can achieve the effects that the average reflectivity in the microwave band of 1-40GHz is less than-15dB (the absorptivity is 96.8%), the effective absorption bandwidth of-10dB exceeds 60% of the total bandwidth, and the effective absorption bandwidth of-10dB exceeds 60% of the total bandwidth. And the average absorptivity under the large incidence angle of 60 degrees is not less than the average absorptivity under the normal incidence angle of 0 degree.

The present invention discloses a high frequency ratio dual-frequency antenna and wireless communication equipment, the high frequency ratio dual-frequency antenna comprising: a metal floor, a gap is formed on the metal floor; a radiation patch is arranged at intervals from the metal floor; a rectangular waveguide is fixed on the metal floor and corresponds to the position of the gap; a microstrip line is sandwiched between the metal floor and the radiation patch and is arranged at intervals from the radiation patch; a first coaxial feeding probe is connected to the rectangular waveguide; a second coaxial feeding probe passes through the metal floor and is electrically connected to the microstrip line. The high frequency ratio dual-frequency antenna of the present invention can work in the microwave frequency band and the millimeter wave frequency band at the same time, which is conducive to alleviating the pressure of frequency band congestion and is easy to integrate.

The application is a high degree of freedom far-field customized compact circularly polarized planar lens antenna. The application relates to the technical field of radiative metasurface antennas. Due to the limitation of space feed, it is difficult for metasurfaces in the microwave band to be applied to integrated systems. Here, the application realizes precise far-field radiation mode manipulation. Two E-shaped unit superimpositions constitute a geometric phase-based metasurface unit, realizing 2pi range transmission phase coverage and high transmittance. The application method realizes highly customized far-field mode control. Several proof-of-concept RTM prototypes are designed and manufactured, realizing energy-controllable multi-beam, wide-angle deflection and customized beamforming. Simulation and experimental results verify that the proposed method and RTM structure can provide a compact wavefront modulation platform and realize highly accurate and customized far-field beamforming.

The present application discloses an edge-side extreme weather identification method applicable to microwave radiometer data, which belongs to the field of remote sensing technology. It addresses the problem of low bandwidth and lack of real-time performance of satellite-to-ground communication in the existing technology. The method of the present application obtains brightness temperature data from a remote sensing satellite equipped with a microwave radiometer, filters out the corresponding remote sensing data packet, and constructs a microwave image containing multiple microwave bands and polarization information through data unpacking, brightness temperature data processing and image generation steps. According to the type and number of extreme weather that needs to be identified, a suitable network architecture is built for model training to generate an extreme weather identification model. Subsequently, quantization technology is used to optimize the trained model to ensure efficient operation on edge devices. The advantages of the present application are that it is efficient and practical, and is suitable for executing complex deep learning tasks in resource-constrained edge computing devices, providing an effective technical means for real-time monitoring of extreme weather.

The invention discloses a metasurface device for high-dimensional light field detection and a detection method of the metasurface device, and belongs to a light field detection technology. According to the metasurface device, a sub-wavelength slit array structure arranged along an Archimedes spiral line is etched on a metal film, and a transmission phase related to frequency and a geometric phase related to polarization are decoupled by utilizing the spatial dispersion and frequency dispersion characteristics of the array structure; therefore, the frequency and the polarization of the incident light are mapped to the topological charge and the composition coefficient of the plasmon vortex light. Through cooperation of the metasurface device and the neural network, the incident frequency and polarization information of the light field to be measured can be accurately extracted from the vortex light interference pattern, and synchronous analysis of multi-dimensional parameters of the light field is realized. The metasurface device not only can cover visible light, near-infrared and terahertz wave bands and even microwave wave bands, but also can extract multi-dimensional information of a light field, can realize accurate regulation and control of the light field on a micron scale through monolithic integration, and provides a solution for a compact optical system.

A microwave-optical transducer device, comprising: an optical cavity formed by a first dielectric substrate having a first optical reflector disposed thereon and a second dielectric substrate having a second optical reflector disposed thereon; a spin ensemble material disposed in the optical cavity, the spin ensemble material disposed on the second dielectric substrate; a planar microwave resonator disposed proximal to the spin ensemble material and inductively coupled thereto; and wherein: the optical cavity is configured to expose the spin ensemble material to an optical-range electromagnetic field; the microwave resonator is configured to expose the spin ensemble material to a micro wave-range electromagnetic field; the spin ensemble material, when exposed to a magnetic field and to an optical pump field having a driving frequency Ωp, to emit the optical-range electromagnetic field upon exposure to the microwave electromagnetic field, and to emit the microwave electromagnetic field upon exposure to the optical-range electromagnetic field.

The application is suitable for the field of silicon-based radio frequency and millimeter wave integrated circuit technology, and provides a satellite distributed configuration numerical control unit, a micro single sheet and an antenna unit, which comprises a decoupling capacitor module, a main control module and a distributed satellite module; the positive electrode of the decoupling capacitor module and the power supply pin of the main control module are connected with the power supply pin of the numerical control unit, and the negative electrode of the decoupling capacitor module and the ground pin of the main control module are connected with the ground pin of the numerical control unit; the distributed satellite module comprises a first satellite sub-module, a second satellite sub-module, a third satellite sub-module and a fourth satellite sub-module, and the connection mode of the first satellite sub-module with the main control module, the connection mode of the second satellite sub-module with the main control module, the connection mode of the third satellite sub-module with the main control module and the connection mode of the fourth satellite sub-module with the main control module are the same. The numerical control unit has the bandwidth universality suitable for various microwave bands and the universality suitable for various semiconductor manufacturing processes.

A large-frequency-ratio dual-frequency Fabry-Perot resonant cavity antenna comprises a dielectric substrate and a magnetoelectric dipole antenna on the dielectric substrate. The magnetoelectric dipole antenna is provided with a Y-shaped microstrip line feed structure, an electric dipole radiator with a rectangular groove and a magnetic dipole structure composed of two pairs of parallel metal plates perpendicular to the ground, and the integrated Fabry-Perot resonant cavity antenna comprises a series resonant cavity composed of upper and lower parallel metal plates and an F-shaped probe feed structure at the center of the ground. The antenna is characterized in that 1, microwave band dual-passband coverage, impedance bandwidth improvement and gain flatness optimization are realized through grooved electric dipoles and Y-shaped feed; 2, a metal plate structure is multiplexed, the size is reduced, millimeter wave dual-passband coverage is realized, and the plate spacing tolerance is improved; and 3, the Y-shaped and F-shaped probes are orthogonally arranged to improve frequency band isolation, the F-shaped probe realizes millimeter wave high peak gain, and the Y-shaped microstrip line realizes microwave band low in-band VSWR (Voltage Standing Wave Ratio).

The present invention discloses a multi-port, high-frequency-ratio antenna, comprising a metal floor and a dielectric substrate. Metal patches are connected to the surface of the dielectric substrate. The metal patches include a first metal patch and a second metal patch. The first and second metal patches are both E-shaped patches, each having a first branch and a second branch located in the center of the E-shaped patch. The first branch is provided with a first Vivaldi antenna unit, the second branch is provided with a second Vivaldi antenna unit, and the antenna further includes a third Vivaldi antenna unit and a fourth Vivaldi antenna unit. By integrating a dipole antenna unit with four Vivaldi antenna units, the specific shape of the dipole antenna unit provides two different resonant paths, achieving dual-band operation in the microwave band. The four Vivaldi antennas operate in the millimeter-wave band. The antenna can operate simultaneously in the microwave and millimeter-wave bands, achieving a high frequency ratio and covering commonly used Wi-Fi, Bluetooth, and 5G communication bands.