293 results about "Antenna design" patented technology

An RF-based material detection device includes an antenna connector, a first interchangeable antenna capable of being releasably coupled to the RF-based material detection device via the antenna connector, an RF transmitter unit operably connected to the antenna connector and configured to transmit an RF signal via the first interchangeable antenna into a first material at a specific resonance frequency for the first material, and an RF receiver unit operably connected to the antenna connector and configured to receive from the first material via the first interchangeable antenna a first modified signal in response to interaction of the RF signal with the first material, wherein the first interchangeable antenna includes one or more design characteristics optimized to detect the first modified signal from the first material.

A vehicle includes a window having an antenna assembly. The window includes a glass surface, a metal frame around the glass surface, and a set of defroster wires in the glass surface. A top wire of the set of defroster wires is separated from a top edge of the metal frame by an antenna region. The antenna is disposed in the antenna region. The antenna has a first end and a second end opposite the first end. The first end intersects a horizontal cover line of the metal frame tangentially. A feed line connects to the first end at the horizontal cover line. A ground line electrically couples the second end of the antenna to the metal frame.

The invention provides an arrival wave angle estimation method based on a zero scanning leaky-wave antenna. A rectangular waveguide is selected as a basic structure to design a periodic leaky-wave antenna only working in a-1 harmonic state; designing necessary antenna simulation parameters; a first leaky-wave antenna is designed; adjusting the gap interval p, and designing a second leaky-wave antenna; obtaining pattern functions of the first leaky-wave antenna and the second leaky-wave antenna; proper amplitude and phase parameters are selected for directional diagram synthesis, and a new directional diagram function is obtained; constructing an array guiding matrix suitable for the MUSIC algorithm; signal sources are arranged at different positions, simulation testing is carried out through MATLAB, and the incoming wave angle estimation capability of the zero-point scanning leaky-wave antenna is verified. According to the invention, a feasible technical path is provided for high-precision positioning and tracking application in future 6G mobile communication. The antenna is especially suitable for application in millimeter wave and terahertz frequency bands, such as vehicle-mounted communication, unmanned aerial vehicle platforms, military electronic countermeasures and the like.

The invention relates to an anti-multipath Beidou antenna design method based on reconfigurable polarization, and belongs to the technical field of satellite navigation and positioning. The method comprises the following steps: fusing data through a distributed sensing and generative adversarial network, and identifying direct and reflected signals by using a decision tree model; constructing a polarization decision model driven by reinforcement learning, and dynamically switching the polarization state of the antenna through a digital phase shifter array, so that the polarization state is matched with a direct signal and mismatched with a reflected signal, thereby realizing multi-path suppression of a polarization domain; a reconfigurable phased array and a digital beam forming technology are combined, a multipath incoming wave direction is predicted, and dynamic null is constructed for spatial filtering; signal tracking and decoupling are carried out by adopting particle filtering and a long-short-term memory network, a vision-inertial navigation cooperation mechanism is introduced, combined suppression and compensation of a dynamic multipath source are realized, and an anti-multipath positioning result is output. And low-cost and high-precision indoor Beidou positioning is realized.

The invention provides a design optimization method and device of an MIMO antenna, equipment and a medium, and belongs to the field of antenna design, and the method comprises the steps: obtaining historical design parameters and corresponding performance indexes of the MIMO antenna; preprocessing the historical design parameters and the performance indexes, constructing a mapping relation between the input data and the output data, and training based on the mapping relation to obtain a forward prediction model and a generation model; and receiving target performance index input, generating a candidate design parameter set by utilizing the trained generation model, performing iterative optimization by taking the candidate design parameter set as an initial population and combining a forward prediction model as an agent model and adopting a multi-objective evolutionary algorithm, and outputting a Pareto optimal solution set as a target design parameter set. Therefore, the performance evaluation link is greatly accelerated by means of the agent model, diversified non-inferior solution selection is provided through Pareto frontier analysis, and different design targets can be flexibly balanced according to actual requirements.

The low-frequency electromagnetic wave has the characteristics of high penetrability and low signal attenuation, and can be widely applied to the fields of underground communication, underwater communication and the like. Most existing low-frequency transmitting antennas are electrically small antennas, have the problems of large size, complex equipment, short transmission distance and the like, and are difficult to meet actual requirements. The invention relates to a high-power pulse low-frequency antenna based on a Tesla coil. The high-power pulse low-frequency antenna is a high-power pulse transmitting antenna composed of a solid-state double-resonance Tesla circuit, a transformer, a primary coil and a secondary coil. The antenna adopts a high-voltage pulse generated by a Tesla circuit for feeding, and meanwhile, a transformer type impedance matching network is combined, so that the feed power is maximized. The radiation coil selects a primary and secondary nested coupling structure, the working frequency is accurately adjusted to be the output frequency of the Tesla circuit by respectively connecting resonant capacitors in series to the primary and secondary coils, and effective amplification of radiation signals is realized based on a magnetic coupling effect. The size of the coil is in the sub-cubic meter level and is within one thousandth of the working wavelength. Aiming at the antenna design difficulty in long-wave communication, the antenna has the advantages of high input power, long-distance transmission and small physical size, and has potential application value in the fields of cross-medium communication, emergency management communication and the like.

The invention discloses a multi-channel switching antenna based on a translation reconfigurable metasurface array, and relates to a multi-channel switching antenna design technology, in particular to a function of translation regulation and control of a beam deflection angle of a translation reconfigurable metasurface. And therefore, the functions of channel switching, dual-channel output and the like can be achieved. The multi-channel switching antenna comprises a translation reconfigurable metasurface array, a mechanical driving system, a feed circuit and a horn antenna array. The main process of the design method is that phase distribution of the translation reconfigurable metasurface is solved based on the generalized Snell law, the differential equation and the Rayleigh-Sommerfeld formula, then the metasurface unit structure and the translation reconfigurable metasurface which meet the requirements are designed through electromagnetic simulation software, arraying is conducted on the translation reconfigurable metasurface, and finally the translation reconfigurable metasurface is obtained. The multi-channel switching antenna based on the translation reconfigurable metasurface array is obtained, and the functions of channel switching, dual-channel output and the like can be achieved.

The invention discloses an up-mixing harmonic energy communication system and method based on direct-mixing intermodulation signal suppression. The communication system includes a receive antenna and an integrated rectified transmitter. The integrated rectified transmitter includes a first branch and a second branch. The invention provides an integrated rectification transmitter with a double-branch structure, an IM2 modulation module is arranged at the tail end of a first branch, and a 90-degree phase shift network is arranged at the head end of a second branch, so that uncontrollable IMD3 signals generated in the first branch and the second branch have a phase difference of 180 degrees and are mutually counteracted; in this way, only the upmixing IMU3 signal which can be controllably and accurately modulated in the first branch is reserved in the uploaded backscattering signal, and more accurate and reliable wireless energy cooperative information transmission is achieved. According to the invention, the frequency of the IM3 signal for communication is close to that of the input dual-tone signal, so that multiplexing can be realized by only needing a small bandwidth in the design of the receiving and transmitting antenna.

The invention discloses a filtering antenna design method of a naked mole algorithm based on SHAP, and relates to the crossing field of a radio frequency front end of a wireless communication system and a computer algorithm. According to the method, the SHAP value is utilized to quantify the influence of the antenna structure parameters on the antenna performance, the search strategy in the NMRA is dynamically adjusted, and the exploration capability of the algorithm in a high-dimensional space is enhanced. Firstly, the SHAP value of each antenna parameter is initialized, and then the NMRA algorithm stage is entered. In the working stage, SHAP weighted differential evolution is carried out, and in the breeding stage, all breeders update their own states according to a certain probability, and breeders with poor performance are eliminated; self-adaptive variation is carried out according to the probability pm so as to prevent from falling into local optimum; and finally, evaluating the new population, updating the current optimal solution, and outputting the optimal solution after the maximum number of iterations is reached. The method is mainly applied to the fields of short-wave satellite communication, radars and the like, the limitation that a uniform search strategy is adopted for all features in the high-dimensional optimization problem of a traditional NMRA algorithm is overcome, and it is guaranteed that the performance of a filtering antenna is good.

Embodiments of the present application relate to the technical field of robot antenna, and particularly relate to a method for determining a layout of a robot auricle antenna, a robot signal device and a robot. The method comprises the following steps: S1: establishing an auricle structure model; S2: selecting a first region as a position for setting an antenna unit and selecting a second region as a position for setting an electromagnetic function structure on the auricle structure model; S3: performing a collaborative optimization on a shape, a size, a position of the antenna unit on the first region and a spatial orientation and a geometric parameter of the electromagnetic function structure by electromagnetic simulation, with an improvement of a radiation performance and / or a port performance of the antenna as an optimization target; and S4: outputting final design parameters of the antenna unit and the electromagnetic function structure after optimization. The method integrates the antenna design and the robot auricle structure, avoids shielding and attenuation of electromagnetic waves by a metal body and internal structures, and improves the anti-interference capability and communication stability of the robot in a complex environment.

This invention belongs to the field of microwave communication technology, specifically relating to a PIFA antenna for 5G dual-band coverage. The invention includes a rectangular metal patch on a top surface, a substrate, and a metal ground plane stacked from top to bottom. A row of grounding vias is disposed through the substrate, and this array of grounding vias is located at the lower end of one side of the rectangular metal patch on the top surface. A coaxial feeding structure is disposed below the rectangular metal patch on the top surface. The antenna excites its fundamental mode TM through the coaxial feeding structure. 0.5,0 Mode and three higher-order modes TM 0.5,1 Pattern, TM 0.5,2 Pattern, and TM 0.5,3 The pattern includes a rectangular metal patch on the upper surface with a first slot along its vertical center line; the first slot has an opening on the side furthest from the grounding via for adjusting the TM. 0.5,1 Pattern and TM 0.5,3 The resonant frequency of the mode; a pair of second slits are orthogonally arranged on both sides of the first slit; the second slits are used to modulate the TM. 0.5,0 Pattern and TM 0.5,2 The resonant frequency of the mode. The antenna design proposed in this invention has advantages such as simple structure, relatively wide dual-band coverage, small size, and low profile.

The application discloses a variable-beam control method of a variable capacitance diode-based element grating leaky-wave antenna, and comprises the following steps: S1, researching and analyzing an ultra-grating beam conversion mechanism; researching the mechanism of a planar ultra-grating under anisotropic, uniform and continuous periodic boundary conditions; S2, according to the ultra-grating, researching a transmission mode and optimization design of a Floquet-Bloch theorem; researching an FB mode, and eliminating the bad FB mode by designing a tool for ultra-grating parameters; S3, analyzing and designing the ultra-grating leaky-wave antenna; researching the analytical field and current of the synthesized ultra-grating in the framework of the leaky-wave antenna, so as to customize the performance of phase, beam shape and polarization; S4, designing and analyzing an electrically-tuned beam control ultra-grating leaky-wave antenna; the application adopts the variable-beam control method of the variable capacitance diode-based element grating leaky-wave antenna, adopts a simple structure of a tunable material to tune an efficient structure platform, and lays a road for a new generation of efficient special gratings.

The invention relates to the technical field of communication equipment design, in particular to a design method and system for a broadband annular magnetoelectric antenna with a high electromechanical coupling coefficient. Constructing a vibration analysis model of the annular piezoelectric layer, and calculating to obtain a characteristic equation of rigidity and mass coefficients according to the vibration analysis model; solving the characteristic equation of the rigidity and the quality coefficient to obtain a resonant frequency and an anti-resonant frequency; the resonant frequency and the anti-resonant frequency are substituted into an electromechanical coupling coefficient formula, a size factor is introduced, and a correction formula is constructed; obtaining an optimized size parameter of the annular piezoelectric layer based on a correction formula; optimized size parameters of the annular piezoelectric layer can be obtained through simulation, the design efficiency and the performance stability of the antenna are further improved, and in practical application, the antenna can adapt to the requirements of different frequency bands and scenes more quickly.

The invention belongs to the technical field of antenna design, and particularly relates to a high-gain low-profile end-on-fire antenna with a non-upwarp wave beam, which comprises a first dielectric substrate, a second dielectric substrate, a Jerusalem cross, a radiation patch, a parasitic patch, a coaxial feed connector and a metal grounding plate, wherein the Jerusalem crosses are periodically arranged between the first dielectric substrate and the second dielectric substrate, the metal grounding plate is located on the lower surface of the first dielectric substrate, the radiation patch and the parasitic patches are located on the upper surface of the second dielectric substrate, the radiation patch is located in the center of the second dielectric substrate, and the parasitic patches are located in the center of the second dielectric substrate. The parasitic patches are positioned on two sides of the radiation patch; and an outer conductor of the coaxial feed connector is connected with the metal floor, and an inner conductor of the coaxial feed connector passes through the dielectric substrate, the Jerusalem cross-shaped through hole and the dielectric substrate and is connected with the radiation patch to form a T-shaped radiation structure.

The invention discloses a spatial positioning method based on signal strength indication, which relates to the technical field of wireless positioning and comprises the following steps of: 1, constructing a positioning network comprising positioning nodes and positioning base stations; 2, the central positioning base station communicates with other common positioning base stations, and meanwhile, the central positioning base station sets space coordinates and communication channels of all the positioning base stations; step 3, the positioning base station immediately feeds back the data to be sent to the positioning node when receiving the position requirement data of the positioning node; and step 4, the positioning node exchanges data with the nearest positioning base station through the channel n. According to the method, the antenna design is optimized, the RSSI positioning precision is further improved, a foundation is laid for data exchange between the positioning node and the positioning base station through the optimized design of the RSSI algorithm, and under the condition of integrating factors such as cost and power consumption, certain positioning precision is guaranteed, and real-time data uploading is achieved.

This invention relates to a broadband high-gain radar antenna based on a metasurface and its applications, belonging to the field of antenna design. From top to bottom, it consists of a metasurface layer (Rogers RO3003C substrate + periodic ideal electrical conductor rectangular elements), an air cavity, a radiating layer (ideal electrical conductor patch with rectangular slots), a ground plane with rectangular slots, and a feed layer (microstrip line), operating near 12.4 GHz. The metasurface elements are optimized through characteristic mode analysis, the air cavity improves impedance matching, and the microstrip line is fed through the rectangular slots of the ground plane and the slots of the radiating layer. CST simulations show that the antenna has an impedance bandwidth of 1800 MHz in the 11.6–13.4 GHz range, a peak gain of 8.37 dBi, and a radiation efficiency of nearly 100%, making it suitable for millimeter-wave radar and providing new ideas for its miniaturization and high performance.

The invention discloses a resolution-oriented 4D millimeter wave radar antenna array and physical layout collaborative optimization method, a program, equipment and a storage medium, which are suitable for a radar system with a limited space and a multi-chip structure. The method comprises the steps of firstly collecting system input parameters; then, an antenna design constraint model is constructed, spatial discretization is carried out, and an optimizable matrix model is formed; transmitting and receiving array structures in the azimuth angle direction and the pitch angle direction are jointly designed through a virtual array mapping strategy, so that the requirements of MIMO mapping efficiency maximization and target angle resolution are met. After an antenna structure is determined, an optimization objective function is further constructed based on strong constraint and soft constraint, and an antenna layout scheme which meets the manufacturing requirements and has optimal performance is obtained through a traversal and search method. According to the method, the virtual aperture can be effectively improved, the antenna number redundancy is reduced, the wiring accessibility is optimized, and the resolution and engineering realizability of a 4D radar system are enhanced.

This application discloses a multi-port antenna design method, apparatus, electronic device, and storage medium, relating to the field of communication technology. The method includes: acquiring the scattering parameter matrix and open-circuit electric field pattern data of the multi-port antenna to be designed within the design frequency band; defining an objective function for designing the multi-port antenna according to actual antenna design requirements; generating structural parameters of the multi-port antenna, and then evaluating the objective function based on the structural parameters; calculating the deviation matrix of the evaluated objective function; determining whether the structural parameters need to be updated based on the deviation matrix; if the structural parameters need to be updated, updating the structural parameters, and then returning to the step of evaluating the objective function based on the structural parameters, until the structural parameters are determined not to need to be updated based on the deviation matrix, and then outputting the current structural parameters as the design parameters of the multi-port antenna. This application can improve the computational speed while maintaining computational accuracy, making it suitable for practical applications.

The utility model relates to the technical field of combined antennas, and discloses a combined antenna convenient to install, which comprises an antenna end, a signal end fixedly arranged at the upper end of the antenna end, a connecting rod fixedly arranged at the lower end of the antenna end, and an installation disc fixedly arranged on the lower side of the antenna end. An anti-skid soft cushion is fixedly arranged at the lower end of the mounting disc, a connecting groove is fixedly formed in the upper end of the mounting disc, a connecting screw hole is fixedly formed in the upper end of the mounting disc, a connecting structure is fixedly arranged at the upper end of the mounting disc, and an adjusting structure is fixedly arranged at the upper end of the mounting disc. According to the combined antenna convenient to install, through the improvement of the combined antenna, the convenient splicing and bundling capabilities of the combined antenna are improved, in the actual use process of the combined antenna, the combined antenna can be conveniently spliced and installed according to needs, and the connecting line of the combined antenna can be conveniently bundled; and the use experience of the combined antenna convenient to install is improved.

The present application describes and discloses a High-Performance Circular Polarization Compact Antenna Design, in particular a new design and arrangement for a patch antenna. The proposed patch antenna comprises a dielectric substrate layer sheet with two sides; a ground plane covering a first side of the dielectric substrate layer; and a patch layer covering a substantial part of a second side of the dielectric substrate layer, opposed to the first side; characterized by patch layer comprising circular features.

The invention provides an antenna system, relates to the technical field of wireless communication, and aims to solve the technical problem of complex antenna design and circuit design layout caused by multi-antenna decoupling in the prior art. The antenna system comprises a metal shell, the metal shell comprises a plurality of antenna areas, each antenna area is internally provided with a first antenna, a second antenna and a capacitance and inductance filtering module, and the capacitance and inductance filtering module is arranged between the first antenna and the second antenna; a grounding connecting piece is arranged in the metal shell, and the input end and the output end of the capacitance-inductance filtering module are electrically connected with the grounding connecting piece; the capacitance-inductance filtering module comprises an open-circuit state or a short-circuit state, and can reduce the coupling of the first antenna and the second antenna according to the working frequency band between the first antenna and the second antenna. An equivalent filter circuit is arranged between adjacent antennas to reduce coupling between the adjacent antennas, so that the isolation of the antennas is improved; and meanwhile, the integrity of the metal shell is not influenced, and a decoupling structure does not need to be additionally arranged.

The embodiment of the invention provides a camera decorating part, a shell assembly and electronic equipment, the camera decorating part comprises a decorating part body, the decorating part body comprises a plurality of mutually independent decorating units, a first gap is formed between every two decorating units, every two decorating units are completely separated by the first gap, and the decorating units are arranged in the first gap; at least one decoration unit is provided with a feed point, and the decoration unit provided with the feed point is used for forming an antenna radiator of the electronic equipment. According to the camera decorating part, the shell assembly and the electronic equipment provided by the embodiment of the invention, the problems of limited antenna layout space and high antenna design difficulty in electronic equipment in related technologies can be solved or relieved.

The invention discloses a system-integrated dipole antenna and a manufacturing method thereof, and relates to the technical field of antenna design, and the system-integrated dipole antenna comprises a dipole radiation module which is used for achieving the energy conversion between a radio frequency signal and a space electromagnetic wave; an integrated balun module and a transceiver circuit module are arranged on the circuit board; the integrated balun module is connected with the two metal radiation arms of the dipole radiation module through feeding points. The transmit-receive circuit module is electrically connected with the integrated Balun module, and performs signal transmission with the dipole radiation module through the integrated Balun module. Compared with a traditional separated antenna and a system architecture of a radio frequency front end, the system integrated dipole antenna realizes balance feed and differential interface integration, energy loss and the size of the system integrated dipole antenna are remarkably reduced, and the integration level and reliability of the system integrated dipole antenna are remarkably improved.

The application discloses a reconfigurable metasurface-based antenna design method and device, equipment and a storage medium. The method comprises the following steps: constructing a mathematical model according to the relationship between antenna structure parameters and gain; solving the mathematical model to obtain initial antenna structure parameters when the system gain is maximum; and performing parameter scanning in the preset range of the initial antenna structure parameters through full-wave simulation to obtain optimized antenna structure parameters. According to the reconfigurable metasurface-based antenna design method provided in the application, the structure of the reconfigurable metasurface antenna can be quickly optimized, the time required for optimization is reduced, good performance is achieved, and the optimization effect is guaranteed.

A mobile device may include a first antenna positioned on a first substrate, the first antenna in communication with a global navigation satellite system (GNSS) receiver to receive first radio signals from at least four GNSS satellites and convert the first radio signals into first electronic signals and a second antenna positioned on a second substrate between 30 degrees and 90 degrees from the first antenna. With such multi-band antenna design, arrangement, and positioning, the GNSS receiver may maximize the number of satellites it can track which results in improved geometry of tracked satellites, which reduces dilution and precision and improves location accuracy of the GNSS receiver.

The embodiment of the present disclosure provides a generative antenna optimization design method based on a generative adversarial network, and belongs to the technical field of antenna design. Specifically, the method comprises the following steps: forming an initial data set by combining structure parameters and performance parameters; dividing the initial data set into two types of samples with a preset median of antenna performance indicators as a dividing point, and taking the superior class samples after normalization as a training set; constructing a generative adversarial network and training it by using the training set; forming a second data set by combining new structure parameters and new performance parameters, merging the superior class samples of the last time with the superior class samples of the current time, dividing again to obtain a new training set to train a new generative adversarial network; generating multiple new antenna models by using the new generative adversarial network and simulating until the requirements are met; and inputting random noise into the trained generative adversarial network to obtain the normalized value of the antenna structure parameters. Through the scheme of the present disclosure, the optimization efficiency and accuracy are improved.

The invention belongs to the technical field of antenna design, and discloses a broadband reflective array antenna unit, which comprises a metal layer, a dielectric layer and a metal back plate which are sequentially stacked, the metal layer comprises eight arc-shaped metal wires of which the centers are communicated, every two of the eight arc-shaped metal wires form a group, two groups are arranged along a first direction, the other two groups are arranged along a second direction, the two directions are orthogonal, and the two groups of arc-shaped metal wires in each direction are rotationally symmetrical about the communication center; any two metal wires which are rotationally symmetrical about the communication center have equal central angles; and in the eight arc-shaped metal wires, any two adjacent arc-shaped metal wires are staggered by a certain distance along the radius direction and extend in opposite rotating directions. The staggered structure not only avoids overlapping of the metal wires and improves the reflection phase range, but also forms a double-resonance mode, so that broadband linear phase response can be provided, and the designed reflective array antenna unit is simple in structure and easy to process, and can also realize linear-circular polarization conversion.

The application discloses a polarization converter using terminated filter circuit to control frequency characteristics, comprising: a dual-polarized antenna array and a filter circuit arranged on the back of the antenna array floor, the dual-polarized antenna array is used for transmitting the received electromagnetic wave signal to the filter circuit arranged on the back of the antenna array floor, and transmitting the signal output through the filter circuit to the free space; the filter circuit is used for realizing the control on the frequency characteristics of the polarization converter. By arranging different filter circuits on the back of the antenna array floor, the polarization converter with different frequency characteristics can be obtained. The application designs a reflection type polarization converter with super wideband and double frequency band. When linear x-polarized or y-polarized electromagnetic wave irradiates to the surface of the polarization converter, the reflected wave is the orthogonal polarization thereof. The application can be used for antenna design, radar cross section (RCS) reduction and wireless communication technology.

The application discloses a lens antenna multi-target optimization method based on prior knowledge neural network, takes INN as the main body of the algorithm, adopts a reverse neural network to perform reverse design on the lens antenna, and the input of the reverse neural network is electromagnetic response, and the output is a structure parameter, so that the inversion of the antenna structure parameter of multiple performance indexes is realized. Meanwhile, multiple sub-FNNs are introduced to provide prior knowledge corresponding to multiple performance indexes, respectively, the input of the forward neural network is the structure parameter, and the output is the electromagnetic response. Compared with the existing lens antenna design method, the design method has the following advantages: 1) the antenna design efficiency is high, and the designed antenna can realize good multi-target characteristics; 2) the proposed KBANN model relieves the problem of large neural network data requirement and provides a new solution. The application can realize the rapid optimization of the multi-target lens antenna, and relieves the problem of large neural network data requirement.

The invention relates to a broadband high-gain radar antenna based on a metasurface and application, and belongs to the field of antenna design. The antenna comprises a metasurface layer (RogersRO3003C substrate and a periodic ideal electric conductor rectangular unit), an air cavity, a radiation layer (an ideal electric conductor patch with a rectangular slot), a grounding plane with a rectangular slot and a feed layer (microstrip line) from top to bottom in sequence, and works near 12.4 GHz. The metasurface unit is optimized through characteristic mode analysis, the air cavity improves impedance matching, and the microstrip line is coupled with the radiation layer gap for feeding through the grounding plane rectangular groove. CST simulation shows that the impedance bandwidth of the antenna is 1800 MHz at the frequency of 11.6-13.4 GHz, the peak gain is 8.37 dBi, the radiation efficiency is nearly 100%, the antenna can be used for millimeter wave radar, and a new thought is provided for miniaturization and high performance of the antenna.