Antenna and design method, device and equipment thereof

Abstract

The invention relates to the field of antennas, in particular to an antenna and a design method, device and equipment thereof. The method comprises the following steps: acquiring the boundary dimension of a to-be-designed antenna; according to the boundary dimension of the to-be-designed antenna, a copper-clad design area of the to-be-designed antenna is determined, and the copper-clad design area is an area used for antenna signal routing design; dividing the copper-clad design area into a plurality of grids; and determining an antenna design result according to the antenna performance corresponding to the copper-clad state information of the grid. According to the method, the antenna with better performance can be obtained, the dependence on the design experience of designers in the design process can be reduced, and the design efficiency of the high-performance antenna can be effectively improved.

Description

Technical Field

[0001] This application relates to the field of antennas, and in particular, to an antenna, a design method, a device, and equipment thereof. Background Art

[0002] In wireless products such as routers and access points, omnidirectional antennas are widely used. The gain of an antenna is used to represent the enhancement degree of the radiation ability of an omnidirectional antenna in a specific direction relative to an ideal point source (isotropic radiator). An omnidirectional antenna with a higher gain can more effectively radiate signals to a farther distance in the horizontal direction, provide a stronger signal, allow a higher data transmission rate, help improve communication quality, and reduce signal interference.

[0003] To improve the antenna gain, for a full-wave dipole antenna, gaps are usually loaded on the antenna to solve the problem of deteriorated matching after the antenna length is increased, and the goal of extending the current path and improving the antenna gain is achieved; for a Franklin antenna, the gain is usually improved by folding the reverse current and arranging the array forward current. However, the above methods rely more on the experience of designers, have low design efficiency, and are not conducive to obtaining an antenna with better performance. Summary of the Invention

[0004] In view of this, embodiments of this application provide an antenna, a design method, a device, and equipment thereof, to solve the problems that the existing antenna design methods rely more on the experience of designers, have low design efficiency, and are not conducive to obtaining an antenna with better performance.

[0005] The first aspect of the embodiments of this application provides an antenna design method, and the method includes:

[0006] Obtain the external dimensions of the antenna to be designed;

[0007] According to the external dimensions of the antenna to be designed, determine the copper-clad design area of the antenna to be designed, where the copper-clad design area is the area for antenna signal routing design;

[0008] Divide the copper-clad design area into a plurality of grids;

[0009] Determine the antenna design result according to the antenna performance corresponding to the copper-clad status information of the grid.

[0010] Combined with the first aspect, in the first possible implementation manner of the first aspect, dividing the copper-clad design area into a plurality of grids includes:

[0011] Determine the structural sensitivity of different positions in the copper-clad design area;

[0012] Determine that the copper-clad design area includes a first sub-area and a second sub-area according to the structural sensitivities of different positions in the copper-clad design area, where the structural sensitivity of the first sub-area is greater than that of the second sub-area;

[0013] Perform grid division on the first sub-area according to a predetermined first grid size, and perform grid division on the second sub-area according to a predetermined second grid size, where the first grid size is smaller than the second grid size.

[0014] Combined with the first possible implementation manner of the first aspect, in the second possible implementation manner of the first aspect, determining the structural sensitivities of different positions in the copper-clad design area includes:

[0015] Obtain the distances between different positions in the copper-clad design area and the feeding port;

[0016] Determine the structural sensitivities of the different positions according to the distances, where the smaller the distance between the position and the feeding port, the higher the structural sensitivity of the position, and the smaller the distance between the position and the feeding port, the higher the structural sensitivity of the position.

[0017] Combined with the first aspect, in the third possible implementation manner of the first aspect, determining the copper-clad design area of the antenna to be designed according to the external dimension of the antenna to be designed includes:

[0018] Determine the transformation characteristics of different copper-clad design areas of the antenna to be designed according to the antenna type of the antenna to be designed;

[0019] Determine the first copper-clad design area and the second copper-clad design area included in the antenna to be designed according to the transformation characteristics and the external dimension, where the first copper-clad design area and the second copper-clad design area are copper-clad design areas with symmetric copper-clad state information;

[0020] Initialize the copper-clad state information of the grid, including:

[0021] Initialize the copper-clad state information of the grid in the first copper-clad design area, and initialize the copper-clad state information of the second copper-clad design area according to the transformation characteristics;

[0022] Adjust the copper-clad state information of the grid, including:

[0023] Adjust the copper-clad state information of the grid in the first copper-clad design area, and update the copper-clad state information of the second copper-clad design area according to the transformation characteristics.

[0024] Combined with the third possible implementation manner of the first aspect, in the fourth possible implementation manner of the first aspect, according to the antenna type of the antenna to be designed, determining the transformation characteristics of different copper-clad design regions of the antenna to be designed includes:

[0025] According to the antenna type of the antenna to be designed, determining at least one of the symmetry characteristics, translation characteristics, and rotation characteristics included in the antenna to be designed.

[0026] Combined with the first aspect, in the fifth possible implementation manner of the first aspect, simulating the antenna simulation performance according to the copper-clad state information of the grid includes:

[0027] Determining a copper-clad information matrix according to the copper-clad state information of the grid in the copper-clad design region, and the elements in the copper-clad information matrix correspond one by one to the copper-clad state information of the grid in the copper-clad design region;

[0028] Inputting the copper-clad information matrix into a predetermined simulation model for simulation to obtain the antenna simulation performance.

[0029] Combined with any one of the first aspect to the fifth possible implementation manner of the first aspect, in the sixth possible implementation manner of the first aspect, determining the copper-clad design region of the antenna to be designed according to the external dimension of the antenna to be designed includes:

[0030] Determining the fixed function region of the antenna to be designed according to the type and external dimension of the antenna to be designed;

[0031] In the region determined by the external dimension of the antenna to be designed, determining the region outside the fixed function region as the copper-clad design region.

[0032] Combined with the first aspect, in the seventh possible implementation manner of the first aspect, determining the antenna design result according to the antenna performance corresponding to the copper-clad state information of the grid includes:

[0033] Initializing the copper-clad state information of the grid;

[0034] Simulating the antenna simulation performance according to the copper-clad state information of the grid, adjusting the copper-clad state information of the grid according to the antenna simulation performance, and re-simulating and calculating the antenna simulation performance of the adjusted copper-clad state information until the antenna simulation performance meets the preset requirements to obtain the antenna design result corresponding to the copper-clad state information.

[0035] The second aspect of the embodiments of the present application provides an antenna design device, and the device includes:

[0036] An external dimension acquisition unit, configured to acquire the external dimension of the antenna to be designed;

[0037] A copper-clad design area determination unit, configured to determine a copper-clad design area for the antenna to be designed according to the external dimension of the antenna to be designed, where the copper-clad design area is an area for antenna signal routing design;

[0038] A grid division unit, configured to divide the copper-clad design area into a plurality of grids;

[0039] An antenna design result determination unit, configured to determine an antenna design result according to the antenna performance corresponding to the copper-clad state information of the grid.

[0040] Combined with the second aspect, in the first possible implementation manner of the second aspect, the grid division unit includes:

[0041] A structure sensitivity determination subunit, configured to determine the structure sensitivities of different positions in the copper-clad design area;

[0042] A sub-region determination subunit, configured to determine that the copper-clad design area includes a first sub-region and a second sub-region according to the structure sensitivities of different positions in the copper-clad design area, where the structure sensitivity of the first sub-region is greater than that of the second sub-region;

[0043] A grid division subunit, configured to divide the first sub-region into grids according to a predetermined first grid size, and divide the second sub-region into grids according to a predetermined second grid size, where the first grid size is smaller than the second grid size.

[0044] Combined with the first possible implementation manner of the second aspect, in the second possible implementation manner of the second aspect, the structure sensitivity determination subunit includes:

[0045] A distance acquisition module, configured to acquire the distances between different positions in the copper-clad design area and the feeding port;

[0046] A structure sensitivity determination module, configured to determine the structure sensitivities of the different positions according to the distances, where the smaller the distance between the position and the feeding port, the higher the structure sensitivity of the position, and the smaller the distance between the position and the feeding port, the higher the structure sensitivity of the position.

[0047] Combined with the second aspect, in the third possible implementation manner of the second aspect, the copper-clad design area determination unit includes:

[0048] A transformation feature determination subunit, configured to determine the transformation features of different copper-clad design areas of the antenna to be designed according to the antenna type of the antenna to be designed;

[0049] A copper-clad design area determination subunit, configured to determine a first copper-clad design area and a second copper-clad design area included in the antenna to be designed according to the transformation feature and the external dimension, where the first copper-clad design area and the second copper-clad design area are copper-clad design areas with symmetric copper-clad state information;

[0050] The grid division unit is configured to:

[0051] Initialize the copper-clad state information of the grid in the first copper-clad design area, and initialize the copper-clad state information of the grid in the second copper-clad design area according to the transformation feature;

[0052] The antenna design result determination unit is configured to:

[0053] Adjust the copper-clad state information of the grid in the first copper-clad design area, and update the copper-clad state information of the grid in the second copper-clad design area according to the transformation feature.

[0054] Combined with the third possible implementation manner of the second aspect, in the fourth possible implementation manner of the second aspect, the antenna design result determination unit includes:

[0055] An initialization subunit, configured to initialize the copper-clad state information of the grid;

[0056] An optimization subunit, configured to perform simulation according to the copper-clad state information of the grid to obtain antenna simulation performance, adjust the copper-clad state information of the grid according to the antenna simulation performance, and re-simulate and calculate the antenna simulation performance of the adjusted copper-clad state information until the antenna simulation performance meets a preset requirement, so as to obtain the antenna design result corresponding to the copper-clad state information.

[0057] Combined with the second aspect, in the fifth possible implementation manner of the second aspect, the antenna design result determination unit includes:

[0058] A matrix determination subunit, configured to determine a copper-clad information matrix according to the copper-clad state information of the grid in the copper-clad design area, where the elements in the copper-clad information matrix correspond one by one to the copper-clad state information of the grid in the copper-clad design area;

[0059] A simulation subunit, configured to input the copper-clad information matrix into a predetermined simulation model for simulation to obtain the antenna simulation performance.

[0060] Combined with any one of the second aspect to the fifth possible implementation manner of the second aspect, in the sixth possible implementation manner of the second aspect, the copper-clad design area determination unit includes:

[0061] A first area determination subunit, configured to determine a fixed function area of the antenna to be designed according to the type and external dimension of the antenna to be designed;

[0062] A second region determination subunit, configured to determine, in a region determined by the external dimensions of the antenna to be designed, a region outside the fixed function region as the copper-clad design region.

[0063] In a third aspect of the embodiments of the present application, there is provided an antenna design device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the antenna design device implements the method according to any one of the first aspects.

[0064] In a fourth aspect of the embodiments of the present application, there is provided a computer program product, which when running on a computer, causes the computer to execute the method in the above first aspect or its various implementation manners.

[0065] In a fifth aspect of the embodiments of the present application, there is provided a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps of the method according to any one of the first aspects are implemented.

[0066] In a sixth aspect of the embodiments of the present application, there is provided a chip for implementing the methods in the various implementation manners in the above first aspect. Specifically, the above chip includes: a processor, configured to call and run a computer program from a memory, so that a device installed with the above chip executes the method according to the above first aspect or its various implementation manners.

[0067] In a seventh aspect of the embodiments of the present application, there is provided an antenna, which is prepared according to the antenna design result determined by the method according to any one of the first aspects.

[0068] The beneficial effects of the embodiments of the present application compared with the prior art are as follows: In the antenna design method in the embodiments of the present application, the copper-clad design region for the antenna signal trace design is determined based on the obtained external dimensions of the antenna, the copper-clad design region is divided into a plurality of grids, and the antenna design result is determined according to the antenna performance corresponding to the copper-clad state information of the grids, thereby reducing the dependence on the design experience of designers in the design process and effectively improving the design efficiency of high-performance antennas. Description of the Drawings

[0069] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0070] Figure 1It is a schematic diagram of the implementation process of an antenna design method provided by an embodiment of the present application;

[0071] Figure 2 It is a schematic diagram of an antenna functional area provided by an embodiment of the present application;

[0072] Figure 3 It is a schematic diagram of grid division provided by an embodiment of the present application;

[0073] Figure 4 It is a schematic diagram of sub-region division provided by an embodiment of the present application;

[0074] Figure 5 It is a schematic diagram of the correspondence between a grid and a copper-clad information matrix provided by an embodiment of the present application;

[0075] Figure 6 It is a schematic diagram of the curve of the number of iterations and the change of antenna simulation performance provided by an embodiment of the present application;

[0076] Figure 7 It is a comparison schematic diagram of a new antenna and an old antenna provided by an embodiment of the present application;

[0077] Figure 8 It is a schematic diagram of the average horizontal gain of an old antenna and a new antenna provided by an embodiment of the present application;

[0078] Figure 9 It is a schematic diagram of an antenna design device provided by an embodiment of the present application;

[0079] Figure 10 It is a schematic diagram of an antenna design device provided by an embodiment of the present application. Detailed implementation manners

[0080] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0081] In order to illustrate the technical solutions described in the present application, the following will be described through specific embodiments.

[0082] In wireless products such as routers and access points, omnidirectional antennas are widely used. The gain of an omnidirectional antenna represents the degree of enhancement of the radiation ability of the omnidirectional antenna in a specific direction relative to an ideal point source. An omnidirectional antenna with a higher gain can more effectively radiate signals to a longer distance in the horizontal direction, provide a stronger signal, allow a higher data transmission rate, and help improve communication quality and reduce signal interference.

[0083] To increase the antenna gain, different types of antennas use different methods: The full-wave dipole antenna usually solves the problem of deteriorated matching after the antenna length increases by loading slots, thereby extending the current path and increasing the gain; The Franklin antenna increases the gain by folding the reverse current and arraying the forward current. However, these traditional design methods rely more on the experience of designers, with low design efficiency and are not conducive to obtaining antennas with better performance.

[0084] To solve the above problems, an embodiment of this application proposes an antenna design method, as Figure 1 shown, this method includes:

[0085] In S101, obtain the external dimensions of the antenna to be designed.

[0086] Among them, the external dimensions of the antenna to be designed include geometric dimension parameters such as the length and width of the antenna to be designed, and these geometric dimension parameters determine the physical space range of the antenna to be designed.

[0087] The external dimensions of the antenna to be designed can be determined according to the antenna installation space reserved in the specific product where the antenna to be designed is applied. For example, when designing an antenna for a Wifi router, the external dimensions of the antenna to be designed can be determined according to the size of the antenna installation space reserved inside the router.

[0088] The external dimensions of the antenna to be designed can be determined according to industry standards or device specification documents. For example, when designing an antenna that meets a specific wireless communication standard, the suggestions and requirements for antenna dimensions in the relevant standards can be consulted to determine the external dimensions of the antenna to be designed.

[0089] In S102, according to the external dimensions of the antenna to be designed, determine the copper-clad design area of the antenna to be designed, and the copper-clad design area is the area for antenna signal routing design.

[0090] The copper-clad design area in the embodiment of this application is the part in the physical space of the antenna for signal routing design. By performing copper-clad treatment in this area, a specific circuit structure for signal radiation is formed to realize the signal radiation function of the antenna.

[0091] To facilitate providing an effective design space for the signal radiation circuit of the antenna to be designed and avoid interference with fixed functional areas, in the embodiments of the present application, the fixed functional areas of the antenna to be designed can be determined first according to the form factor and antenna type, and then the copper cladding design area can be determined based on the fixed functional areas.

[0092] For different types of antennas, the specific types of areas included in the fixed functional areas are different. For example, for a dipole antenna, the fixed functional areas may include the antenna pad area, the dipole arm separation area, and the coaxial cable routing area. Among them, the antenna pad area can be used to install the feed port. For a Franklin antenna, the fixed functional areas may include the antenna pad area, the radiator area, and the inverter area.

[0093] Among them, the feed port area is the area where the interface for connecting the antenna to the external circuit is located, and is used to transmit signal power. The dipole arm separation area is the area used to separate different parts of the dipole arm to achieve specific electrical characteristics. The coaxial cable routing area is the path area where the coaxial cable is arranged on the antenna, and is used to connect the feed port and other circuit parts. The antenna pad area is the area used to weld the antenna to other components to ensure the reliability of the electrical connection.

[0094] For example, for a dipole antenna, the feed port is usually located at the center of the antenna, that is, the connection point of the two dipole arms. The feed port of a microstrip antenna is usually located at the edge or center of the patch, which can be determined according to impedance matching and radiation characteristics. The feed port of a patch antenna can be located at the edge or inside of the patch. After determining the position of the feed port corresponding to the type of the antenna to be designed, the specific size of the feed port area is determined in combination with the form factor of the antenna.

[0095] For a dipole antenna, a certain spacing needs to be maintained between the two dipole arms, and this spacing is the dipole arm separation area, which is usually 1 / 2 or 1 / 4 of the operating wavelength. For a microstrip antenna, the dipole arm separation area is usually the space between the patch and the ground plane.

[0096] For the coaxial cable routing area, which is used to connect the antenna to the RF circuit, the routing length of this area should be minimized to reduce signal loss, and excessive bending of the coaxial cable should be avoided as much as possible to prevent affecting signal transmission. The antenna pad area is the welding connection point between the antenna and the PCB or the feeder. The size of the antenna pad area should be suitable for the welding process, usually slightly larger than the pins of the feeder or the connector, and should be close to the feed port to reduce the length of the connection wire.

[0097] After determining the above-mentioned various functional areas, in addition to these functional areas, it can be used for signal routing design, that is, the copper cladding design area.

[0098] For example Figure 2In the schematic diagram of the antenna functional area shown, the center of the antenna to be designed is the feeding port 201, the feeding port 201 is located in the antenna pad area 202, the left and right sides of the feeding port 201 are the dipole arm separation areas 203, and the coaxial cable routing area 204 is located at the vertical center line of the antenna. After determining the positions of each functional area, according to the external dimensions of the antenna to be designed, the dimensions of each functional area can be determined according to a predetermined ratio. According to the determined dimensions and positions of the functional areas, other areas outside the functional areas can be determined as the copper-clad design areas, that is, used to design the routing of the radiation circuit of the antenna to improve performance such as the gain of the antenna.

[0099] In S103, the copper-clad design area is divided into a plurality of grids.

[0100] The grids in the embodiments of the present application can be rectangular grids, or can also be triangular grids or grids of other shapes.

[0101] When dividing the copper-clad design area into a plurality of grids, each grid can be a rectangular unit, and each rectangular unit can be independently set to be copper-clad or not copper-clad. The copper-clad status information is used to record the status of whether each grid is copper-clad.

[0102] As Figure 3 In the schematic diagram of grid division shown, in the embodiments of the present application, grids 301 can be divided in the copper-clad design area at a fixed interval distance, and the interval distance can be set according to the design accuracy requirements. For example, the size of the grid 301 can be 1 mm × 1 mm, 0.5 mm × 0.5 mm, etc.; when initializing the copper-clad status information, it can be default that all grids are randomly copper-clad, or some grids are set to be copper-clad according to the preliminary design idea. For example, when designing an antenna for a 5G communication base station, the copper-clad design area is divided into square grids with a side length of 1 mm. When initializing, according to traditional antenna design experience, copper-clad grids are set in the dipole arm area, and non-copper-clad grids are set in other areas.

[0103] In order to further improve the antenna design performance, the embodiments of the present application can adopt a variety of grid division methods with different fine-grain sizes to determine the grids in the copper-clad design area of the antenna to be designed.

[0104] In a possible implementation manner, the structural sensitivities of different positions in the copper-clad design area can be determined, and according to the structural sensitivities of different positions, the copper-clad design area is divided into a plurality of sub-areas. For example Figure 4It is a schematic diagram of sub-region division in an embodiment of the present application. The multiple sub-regions include a first sub-region and a second sub-region. Among them, the structural sensitivity of the first sub-region is greater than that of the second sub-region. According to different structural sensitivities, grids of different sizes can be divided. For example, since the structural sensitivity of the first sub-region is higher, grids with a smaller granularity, that is, smaller sizes, can be divided. The structural sensitivity of the second sub-region is lower than that of the first sub-region, and grids with a larger granularity, that is, larger sizes, can be divided.

[0105] In an embodiment of the present application, the structural sensitivity can be the degree of influence of the change in the antenna copper cladding structure on the antenna gain. The higher the structural sensitivity, the greater the influence of the change in the antenna copper cladding structure on the antenna gain.

[0106] In a possible implementation, the structural sensitivities of different positions in the copper cladding design area can be determined according to the distances of different positions from the feed port. In the model of the copper cladding design area, taking the feed port as the reference position, determine the straight-line distance from each position to the feed port; then according to the set mapping relationship between the distance and the structural sensitivity, such as the smaller the distance, the higher the structural sensitivity, convert the distance value into a structural sensitivity value. According to a preset structural sensitivity threshold, divide the copper cladding design area into multiple sub-regions, and according to the corresponding relationship between the preset grid size and the structural sensitivity, determine the grid size corresponding to each sub-region. For example Figure 4 In the shown schematic diagram of sub-region division, the structural sensitivity of the first sub-region 401 is higher than that of the second sub-region 402. Therefore, the size of the grid in the first sub-region is smaller.

[0107] In an embodiment of the present application, the transformation characteristics of different copper cladding design areas of the antenna can be determined according to the type of the antenna to be designed. The transformation characteristics can include symmetry characteristics, translation characteristics, rotation characteristics, etc.

[0108] Among them, the symmetry characteristic of the antenna refers to the symmetry existing in the geometric shape or electrical performance of the antenna, such as left-right symmetry, up-down symmetry, etc. The first copper cladding design area and the second copper cladding design area are two areas divided according to the symmetry characteristic, and their copper cladding status information has a corresponding relationship under the symmetry characteristic. For example Figure 2 In the shown schematic diagram of the antenna functional area, the antenna to be designed includes four copper cladding design areas: the upper left area, the upper right area, the lower left area, and the lower right area. The upper left area and the upper right area, as well as the lower left area and the lower right area, are left-right symmetric, and the upper left area and the lower left area are up-down symmetric. Utilizing the transformation characteristics of the antenna to be designed can simplify the design process, improve the design efficiency, and at the same time ensure the consistency of the antenna performance.

[0109] For example, for a common dipole antenna, it has a left-right symmetric structure. The copper-clad design area can be divided into two symmetric parts, namely the first copper-clad design area and the second copper-clad design area, according to the axis of symmetry or the center of symmetry.

[0110] Based on the determined transformation characteristics, when initializing the grids in the copper-clad design area or adjusting the copper-clad status information of the grids in the copper-clad design area, only the copper-clad status information of some areas needs to be determined, and according to the transformation characteristics, the determined copper-clad status information of some areas is mapped to other areas, which can effectively improve the update efficiency of the copper-clad status information.

[0111] For example, according to the transformation characteristics of the first copper-clad design area and the second copper-clad design area, after initializing the copper-clad status information of the grids in the first copper-clad design area, according to the transformation characteristics, the copper-clad status information of the grids in the first copper-clad design area is mapped to the second copper-clad design area to complete the initialization of the copper-clad status information of the second copper-clad design area. Similarly, after adjusting the copper-clad status information of the grids in the first copper-clad design area, according to the transformation characteristics, the copper-clad status information of the grids in the first copper-clad design area can be mapped to the second copper-clad design area to complete the update of the copper-clad status information of the second copper-clad design area.

[0112] In S104, according to the antenna performance corresponding to the copper-clad status information of the grids, the antenna design result is determined.

[0113] In the embodiments of the present application, the antenna simulation performance can be various performance indicators simulated by simulation software for the antenna at a specific operating frequency, including, for example, gain, impedance matching, radiation pattern, etc. When adjusting the copper-clad status information of the grids according to the simulation results, the copper-clad status of some grids can be changed according to the quality of the performance indicators to optimize the antenna performance. Through continuous iterative optimization, the designed antenna meets the preset performance requirements, improving the design efficiency and quality.

[0114] An antenna simulation software, such as CST, HFSS, etc., can be used to import the antenna model with grids divided and copper-clad status information set into the simulation software, set simulation parameters such as the operating frequency and boundary conditions, and run the simulation to obtain the performance results; according to the performance indicators in the simulation results, adjust the copper-clad status information of the grids. For example, if the gain does not meet the requirements, copper-clad grids can be added in the oscillator arm area to extend the current path and improve the gain.

[0115] After each adjustment of the copper-clad status information of the copper-clad design area, re-run the simulation calculation until all performance indicators meet the preset requirements. In a possible implementation, the size of the copper-clad design area can be continuously adjusted during the optimization process until the antenna simulation performance meets the preset requirements.

[0116] Among them, when adjusting the copper plating status information of the grid, a genetic algorithm or a covariance matrix adaptation evolution algorithm can be used for global optimization to improve the optimization efficiency of the antenna performance.

[0117] In the embodiment of the present application, when simulating the copper plating status information of the grid, a copper plating information matrix corresponding to the copper plating status information of the grid can be determined in advance. Each element in the copper plating information matrix corresponds to a grid one by one, and the position of the element in the copper plating information matrix corresponds to the grid one by one, including that the position of the element in the copper plating information matrix corresponds to the position of the grid one by one, and the value of the element in the copper plating information matrix corresponds to the copper plating status information of the grid one by one.

[0118] Such as Figure 5 In the corresponding schematic diagram of the grid and the copper plating information matrix shown, the position of the element in the copper plating information matrix corresponds to the position of the grid one by one, including that the row and column values of the element in the copper plating information matrix are the same as the row and column in the copper plating design area of the grid. For example, the element in the 3rd row and 4th column of the copper plating information matrix corresponds to the grid in the 3rd row and 4th column in the copper plating design area.

[0119] The value of the element in the copper plating information matrix corresponds to the copper plating status information of the grid one by one, indicating that the value of the element in the copper plating information matrix can be used to represent the copper plating status information of the grid at the corresponding position. For example, the copper plating status information of the grid is usually represented by a binary number, where 1 represents copper plating and 0 represents non - copper plating. The grid in the 3rd row and 4th column in the copper plating design area is in the copper plating state. Correspondingly, the element in the 3rd row and 4th column of the copper plating information matrix is "1", indicating that this grid is in the copper plating state.

[0120] It can be seen that representing the copper plating status information in matrix form is convenient for input into the simulation model for calculation and analysis.

[0121] Adjust the copper plating status information of the grid based on the antenna simulation performance, and re - simulate and calculate the antenna simulation performance of the adjusted copper plating status information. Through multiple adjustments and simulations, until the antenna simulation performance meets the preset requirements. For example Figure 6 In the schematic diagram of the iteration number and the change curve of the antenna simulation performance shown, as the number of iterations increases, the increasing amplitude of the antenna simulation performance gradually becomes smaller. Therefore, the embodiment of the present application can monitor the number of iterations, or if the gain change amplitude for a continuous predetermined number of times is less than a predetermined amplitude threshold, it is determined that the antenna simulation performance meets the preset requirements.

[0122] In addition, the embodiment of the present application also provides an antenna obtained according to the above - mentioned antenna design method, such as Figure 7As shown in the figure, it is a comparison schematic diagram of a new antenna and an old antenna designed by an antenna design method provided in an embodiment of the present application. The left figure is a copper-clad schematic diagram of an old antenna used in a traditional Mesh routing product, and the right figure is a copper-clad schematic diagram of a new antenna designed by using the antenna design method in the embodiment of the present application. From Figure 7 It can be seen that the structure of the new antenna designed by the mesh optimization method in the embodiment of the present application is more complex, showing a left-right symmetric and up-down symmetric structure distribution, and including multiple independent copper-clad regions. Figure 8 For Figure 7 the schematic diagram of the average horizontal gain of the old antenna and the new antenna shown in the figure, from Figure 8 it can be seen that the average horizontal gain of the new antenna optimizes the average horizontal gain of the old antenna at each frequency point, and as the frequency increases, the increase amplitude of the average horizontal gain is greater.

[0123] It should be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not mean the order of execution. The order of execution of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0124] Figure 9 As shown in the figure, it is a schematic diagram of an antenna design device provided in an embodiment of the present application. The device includes:

[0125] An outer dimension acquisition unit 901, configured to acquire the outer dimensions of the antenna to be designed;

[0126] A copper-clad design area determination unit 902, configured to determine the copper-clad design area of the antenna to be designed according to the outer dimensions of the antenna to be designed, where the copper-clad design area is an area for antenna signal routing design;

[0127] A grid division unit 903, configured to divide the copper-clad design area into multiple grids;

[0128] An antenna design result determination unit 904, configured to determine the antenna design result according to the antenna performance corresponding to the copper-clad status information of the grid.

[0129] Figure 9 The antenna design device shown in the figure corresponds to Figure 1 the antenna design method shown in the figure.

[0130] Figure 10 As shown in the figure, it is a schematic diagram of an antenna design device provided in an embodiment of the present application. As Figure 10As shown, the antenna design device 10 of this embodiment includes: a processor 100, a memory 101, and a computer program 102 stored in the memory 101 and executable on the processor 100, such as an antenna design program. When the processor 100 executes the computer program 102, the steps in the above-mentioned various antenna design method embodiments are implemented. Alternatively, when the processor 100 executes the computer program 102, the functions of each module / unit in the above-mentioned various device embodiments are implemented.

[0131] Exemplarily, the computer program 102 can be divided into one or more modules / units. The one or more modules / units are stored in the memory 101 and executed by the processor 100 to complete this application. The one or more modules / units can be a series of computer program instruction segments capable of performing specific functions, and these instruction segments are used to describe the execution process of the computer program 102 in the antenna design device 10.

[0132] The antenna design device 10 can be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. The antenna design device may include, but is not limited to, a processor 100 and a memory 101. Those skilled in the art can understand that Figure 10 This is only an example of an antenna design device 10, and does not constitute a limitation on the antenna design device 10. It may include more or fewer components than shown in the figure, or combine certain components, or different components. For example, the antenna design device may further include input / output devices, network access devices, buses, etc.

[0133] The so-called processor 100 may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor, or the processor may also be any conventional processor, etc.

[0134] The memory 101 may be an internal storage unit of the antenna design device 10, such as a hard disk or memory of the antenna design device 10. The memory 101 may also be an external storage device of the antenna design device 10, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc. equipped on the antenna design device 10. Further, the memory 101 may also include both an internal storage unit and an external storage device of the antenna design device 10. The memory 101 is used to store the computer program and other programs and data required by the antenna design device. The memory 101 may also be used to temporarily store the data that has been output or will be output.

[0135] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the above division of each functional unit and module is used as an example. In actual applications, the above functions can be allocated to different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. In addition, the specific names of each functional unit and module are only for the convenience of mutual distinction and do not limit the protection scope of this application. The specific working process of the units and modules in the above system can refer to the corresponding process in the foregoing method embodiment and will not be described in detail here.

[0136] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0137] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or by a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0138] In the embodiments provided in the present application, it should be understood that the disclosed device / terminal device and method can be implemented in other ways. For example, the device / terminal device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical or other forms.

[0139] The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0140] In addition, in each embodiment of the present application, the functional units can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0141] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, all or part of the processes in the above-described method embodiments of the present application can also be completed by hardware related to computer program instructions. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above-described method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0142] In addition, an embodiment of the present application further provides a computer program product which, when running on a computer, causes the computer to execute the methods in the above-mentioned various implementation manners.

[0143] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An antenna design method, characterized in that, The method includes: Obtaining the external dimensions of the antenna to be designed; Determining the copper-clad design area of the antenna to be designed according to the external dimensions of the antenna to be designed, where the copper-clad design area is the area for antenna signal routing design; Dividing the copper-clad design area into multiple grids; Determining the antenna design result according to the antenna performance corresponding to the copper-clad status information of the grids.

2. The method according to claim 1, wherein Dividing the copper-clad design area into multiple grids includes: Determining the structural sensitivities of different positions in the copper-clad design area; Determining that the copper-clad design area includes a first sub-area and a second sub-area according to the structural sensitivities of different positions in the copper-clad design area, where the structural sensitivity of the first sub-area is greater than that of the second sub-area; Dividing the first sub-area into grids according to a predetermined first grid size, and dividing the second sub-area into grids according to a predetermined second grid size, where the first grid size is smaller than the second grid size.

3. The method according to claim 2, characterized in that, Determining the structural sensitivities of different positions in the copper-clad design area includes: Obtaining the distances between different positions in the copper-clad design area and the feeding port; Determining the structural sensitivities of the different positions according to the distances, where the smaller the distance between the position and the feeding port, the higher the structural sensitivity of the position, and the smaller the distance between the position and the feeding port, the higher the structural sensitivity of the position.

4. The method according to claim 1, characterized in that, Determining the copper-clad design area of the antenna to be designed according to the external dimensions of the antenna to be designed includes: Determining the transformation characteristics of different copper-clad design areas of the antenna to be designed according to the antenna type of the antenna to be designed; Determining the first copper-clad design area and the second copper-clad design area included in the antenna to be designed according to the transformation characteristics and the external dimensions, where the first copper-clad design area and the second copper-clad design area are copper-clad design areas with symmetric copper-clad status information; Initializing the copper-clad status information of the grids includes: Initializing the copper-clad status information of the grids in the first copper-clad design area, and initializing the copper-clad status information of the second copper-clad design area according to the transformation characteristics; Adjusting the copper-clad status information of the grids includes: Adjusting the copper-clad status information of the grids in the first copper-clad design area, and updating the copper-clad status information of the second copper-clad design area according to the transformation characteristics.

5. The method according to claim 1, characterized in that Determining the antenna design result according to the antenna performance corresponding to the copper-clad status information of the grids includes: Initializing the copper-clad status information of the grids; Performing simulation according to the copper-clad status information of the grids to obtain the antenna simulation performance, adjusting the copper-clad status information of the grids according to the antenna simulation performance, and re-simulating and calculating the antenna simulation performance of the adjusted copper-clad status information until the antenna simulation performance meets the preset requirements to obtain the antenna design result corresponding to the copper-clad status information.

6. The method according to claim 1, characterized in that, Performing simulation according to the copper-clad status information of the grids to obtain the antenna simulation performance includes: Determine a copper-clad information matrix according to the copper-clad status information of the grid in the copper-clad design area, and the elements in the copper-clad information matrix correspond one-to-one to the copper-clad status information of the grid in the copper-clad design area; Input the copper-clad information matrix into a predetermined simulation model for simulation to obtain the antenna simulation performance.

7. The method according to any one of claims 1-6, characterized in that, According to the external dimensions of the antenna to be designed, determine the copper-clad design area of the antenna to be designed, including: Determine the fixed functional area of the antenna to be designed according to the type and external dimensions of the antenna to be designed; In the area determined by the external dimensions of the antenna to be designed, determine the area outside the fixed functional area as the copper-clad design area.

8. An antenna design device, characterized in that, The device includes: An external dimension acquisition unit for acquiring the external dimensions of the antenna to be designed; A copper-clad design area determination unit for determining the copper-clad design area of the antenna to be designed according to the external dimensions of the antenna to be designed, and the copper-clad design area is an area for antenna signal routing design; A grid division unit for dividing the copper-clad design area into a plurality of grids; An antenna design result determination unit for determining the antenna design result according to the antenna performance corresponding to the copper-clad status information of the grid.

9. An antenna design device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, the antenna design device realizes the method according to any one of claims 1-7.

10. An antenna, characterized in that, The antenna is prepared according to the antenna design result determined by the method according to any one of claims 1-7.

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