Antenna simulation efficiency compensation design method and device, equipment and storage medium

Abstract

The invention discloses an antenna simulation efficiency compensation design method and device, equipment and a storage medium, and relates to the technical field of simulation testing. The method comprises the following steps: acquiring a theoretical difference value between simulation efficiency of a standard reference antenna constructed by an antenna to be designed in simulation software and a microwave anechoic chamber; according to the radio frequency matching circuit structure of the antenna to be designed and the coaxial line parameters, theoretical loss parameters are obtained through calculation; constructing a simulation model of a to-be-designed antenna, and obtaining theoretical radiation efficiency according to the simulation model; and calculating the antenna simulation radiation efficiency according to the obtained theoretical difference value, the theoretical loss parameter and the theoretical radiation efficiency. Theoretical calculation and compensation are carried out on variables related to simulation and real objects, the difference between simulation efficiency and actual efficiency is made up, and more accurate antenna performance evaluation is achieved.

Description

Technical Field

[0001] This application relates to the field of simulation testing technology, and in particular to an antenna simulation efficiency compensation design method, device, equipment and storage medium. Background Technology

[0002] Antenna simulation software is a tool used to simulate and analyze antenna performance. It allows engineers to perform complex electromagnetic field simulations on a computer in order to better understand and optimize antenna performance.

[0003] Currently, in antenna simulation, there is a significant difference between simulation efficiency and actual efficiency.

[0004] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this application is to provide an antenna simulation efficiency compensation design method, device, equipment, and storage medium, aiming to solve the technical problem that the simulated efficiency of antennas differs significantly from the efficiency measured in an actual microwave anechoic chamber in the prior art.

[0006] To achieve the above objectives, in a first aspect, this application proposes an antenna simulation efficiency compensation design method, which includes: obtaining the difference between the simulation efficiency of a standard reference antenna constructed from the antenna to be designed in simulation software and the theoretical difference in a microwave anechoic chamber; calculating and obtaining theoretical loss parameters based on the RF matching circuit structure and coaxial line parameters of the antenna to be designed; constructing a simulation model of the antenna to be designed and obtaining the theoretical radiation efficiency based on the simulation model; and calculating the antenna simulation radiation efficiency based on the obtained theoretical difference, the theoretical loss parameters, and the theoretical radiation efficiency.

[0007] Secondly, this application also proposes an antenna simulation efficiency compensation design device, comprising:

[0008] The difference acquisition module is used to obtain the difference between the simulation efficiency of the standard reference antenna constructed from the antenna to be designed in the simulation software and the theoretical value in the microwave anechoic chamber.

[0009] The loss calculation module is used to calculate and obtain theoretical loss parameters based on the RF matching circuit structure and coaxial line parameters of the antenna to be designed.

[0010] The efficiency acquisition module is used to build a simulation model of the antenna to be designed and to obtain the theoretical radiation efficiency based on the simulation model.

[0011] The efficiency acquisition module is also used to calculate the simulated radiation efficiency of the antenna based on the acquired theoretical difference, theoretical loss parameters, and theoretical radiation efficiency.

[0012] Thirdly, this application also proposes an antenna simulation efficiency compensation design device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the above-mentioned antenna simulation efficiency compensation design method.

[0013] Fourthly, this application also proposes a storage medium that is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the above-described antenna simulation efficiency compensation design method.

[0014] The aforementioned antenna simulation efficiency compensation design method, device, equipment, and storage medium, by theoretically calculating and compensating for the variables involved in the simulation and the actual device, make up for the difference between the simulation efficiency and the actual efficiency, and achieve a more accurate antenna performance evaluation. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a flowchart illustrating the first embodiment of the antenna simulation efficiency compensation design method of this application;

[0018] Figure 2 This is a flowchart illustrating Embodiment 2 of the antenna simulation efficiency compensation design method of this application.

[0019] Figure 3 This is a schematic diagram of the standard reference antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application;

[0020] Figure 4 This is a schematic diagram of the simulated antenna efficiency of the standard reference antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application;

[0021] Figure 5 This is a schematic diagram of the first reflection coefficient of the antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application;

[0022] Figure 6 This is a schematic diagram of the first radiation efficiency of the antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application;

[0023] Figure 7This is a schematic diagram of the second reflection coefficient of the antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application;

[0024] Figure 8 This is a schematic diagram of the second radiation efficiency of the antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application;

[0025] Figure 9 This is a schematic diagram of the first simulated radiation efficiency of the antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application;

[0026] Figure 10 This is a schematic diagram of the second simulated radiation efficiency of the antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application;

[0027] Figure 11 This is a schematic diagram of the module structure of the antenna simulation efficiency compensation design device according to an embodiment of this application;

[0028] Figure 12 This is a schematic diagram of the antenna simulation efficiency compensation design equipment structure for the hardware operating environment involved in the antenna simulation efficiency compensation design method in this application embodiment.

[0029] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0031] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0032] The main solution of this application embodiment is: to obtain the difference between the simulation efficiency of the standard reference antenna constructed from the antenna to be designed in the simulation software and the theoretical value of the microwave anechoic chamber; to calculate and obtain the theoretical loss parameters based on the RF matching circuit structure and coaxial line parameters of the antenna to be designed; to construct a simulation model of the antenna to be designed and obtain the theoretical radiation efficiency based on the simulation model; and to calculate the antenna simulation radiation efficiency based on the obtained theoretical difference, the theoretical loss parameters, and the theoretical radiation efficiency.

[0033] Because existing technologies involve too many variables in simulation and actual testing, simulation software cannot fully account for them. The simulated efficiency of the antenna is much higher than the efficiency measured in an actual microwave anechoic chamber, resulting in a discrepancy between simulated and actual efficiency.

[0034] This application provides a solution that compensates for the difference between simulation efficiency and actual efficiency by theoretically calculating and compensating for the variables involved in simulation and physical objects, thereby achieving a more accurate antenna performance evaluation.

[0035] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an antenna simulation efficiency compensation design device capable of performing the above functions. The following description uses an antenna simulation efficiency compensation design device as an example to illustrate this embodiment and the subsequent embodiments.

[0036] Based on this, embodiments of this application provide an antenna simulation efficiency compensation design method, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the antenna simulation efficiency compensation design method of this application.

[0037] In this embodiment, the antenna simulation efficiency compensation design method includes steps S10 to S40:

[0038] Step S10: Obtain the difference between the simulation efficiency of the standard reference antenna constructed from the antenna to be designed in the simulation software and the theoretical efficiency in the microwave anechoic chamber.

[0039] It should be noted that the antenna to be designed can be the antenna that needs to be built in the current design, which includes structural designs and parameter settings that can affect the simulation results. It can be built according to actual needs, and no specific restrictions are imposed here. The standard reference antenna can be a simplified physical antenna made according to the product type of the antenna to be designed. The microwave anechoic chamber can be a closed space used for wireless communication and electronic product testing. It can effectively prevent multiple reflections of electromagnetic waves, isolate external electromagnetic interference, and provide a relatively stable electromagnetic environment. The antenna can be placed in the microwave anechoic chamber to test the actual efficiency of the antenna.

[0040] It should be understood that the actual efficiency of an antenna is measured in a microwave anechoic chamber. However, the system design and algorithms of microwave anechoic chambers vary from brand to brand, resulting in different efficiencies for the same antenna measured in different anechoic chambers. Therefore, a reference microwave anechoic chamber can be constructed, such as a Global Test Solutions (GTS) platform. A standard reference antenna can be designed according to the product type. The simulated efficiency of the standard reference antenna can be calculated in simulation software (such as CST). The actual efficiency of the standard reference antenna in the aforementioned reference microwave anechoic chamber can be obtained through instrument testing, thereby obtaining the theoretical difference.

[0041] Step S20: Calculate and obtain the theoretical loss parameters based on the RF matching circuit structure and coaxial line parameters of the antenna to be designed.

[0042] It should be noted that an RF matching circuit can be a circuit used to achieve impedance matching between the antenna and the RF front end. By ensuring conjugate matching between the source impedance (such as the output impedance of the RF transmitter) and the load impedance (such as the input impedance of the antenna), it maximizes power transfer and reduces signal reflection. A coaxial cable can be a connecting line used to connect RF equipment and the antenna, for signal transmission and to ensure impedance matching.

[0043] It should be understood that the antenna PCB board is designed with a Π-type matching circuit reserved for the antenna. The matching circuit contains electronic components such as 0-ohm resistors, capacitors and inductors. Due to different antenna designs, the RF matching circuit will also vary. For the product design that meets the requirements, the theoretical loss of the RF matching circuit and electronic components used in the passive antenna test can be calculated using simulation software.

[0044] Furthermore, the coaxial cables selected come from different brand manufacturers, and the differences between coaxial cables from different brands are quite obvious. Even coaxial cables made of the same material will have different losses depending on their length. Therefore, it is also necessary to calculate the theoretical loss of the coaxial cable when conducting passive antenna testing.

[0045] Step S30: Construct a simulation model of the antenna to be designed, and obtain the theoretical radiation efficiency based on the simulation model.

[0046] It should be noted that an antenna simulation model is a mathematical representation used to simulate and analyze antenna performance, predicting antenna performance during the design phase. Typically, parameters such as the antenna's geometry, material properties, and operating frequency need to be input. Simulation software is then used to obtain the theoretical radiation efficiency of the antenna simulation model. This theoretical radiation efficiency can be the radiation efficiency obtained solely from the input antenna parameters, without considering variables such as the microwave anechoic chamber or antenna structure.

[0047] Step S40: Calculate the simulated radiation efficiency of the antenna based on the obtained theoretical difference, theoretical loss parameters, and theoretical radiation efficiency.

[0048] It should be noted that the simulated radiation efficiency of an antenna can be used as an indicator to measure the antenna's ability to convert input power into radiated power. Since the theoretical difference, theoretical loss parameters, and theoretical radiation efficiency mentioned above are solved separately for various variables involved in simulation and physical testing, the simulated radiation efficiency can be calculated using the specific values ​​obtained from these solutions. The units for all parameters mentioned above can be dB. The simulated radiation efficiency can be obtained by summing the theoretical difference, theoretical loss parameters, and theoretical radiation efficiency. Because various variables that could lead to discrepancies between simulated and actual efficiency are considered, the simulated radiation efficiency is essentially the same as the actual radiation efficiency of a physically manufactured antenna in a microwave anechoic chamber. The antenna to be designed can also be adjusted based on the obtained simulated radiation efficiency to obtain a physical antenna that meets the design requirements.

[0049] In this embodiment, the antenna simulation efficiency compensation design method includes: obtaining the difference between the simulation efficiency of a standard reference antenna constructed from the antenna to be designed in simulation software and the theoretical efficiency in a microwave anechoic chamber; calculating and obtaining theoretical loss parameters based on the RF matching circuit structure and coaxial line parameters of the antenna to be designed; constructing a simulation model of the antenna to be designed and obtaining the theoretical radiation efficiency based on the simulation model; and calculating the antenna simulation radiation efficiency based on the obtained theoretical difference, the theoretical loss parameters, and the theoretical radiation efficiency. By performing theoretical calculations and compensation on the variables involved in the simulation and the physical object, the difference between the simulation efficiency and the actual efficiency is made up, achieving a more accurate antenna performance evaluation.

[0050] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 2 , Figure 2 This is a flowchart illustrating an embodiment of the antenna simulation efficiency compensation design method of this application. In step S10, the antenna simulation efficiency compensation design method includes:

[0051] Step S201: Construct a standard reference antenna of the same type as the antenna to be designed, and obtain the simulated antenna efficiency of the standard reference antenna.

[0052] It should be noted that the standard reference antenna is designed according to the product type of the antenna to be designed. For example, if the product type of the antenna to be designed is a BT / WIFI antenna, and the antenna polarization direction is linear polarization, then a linearly polarized antenna can be designed. (Refer to...) Figure 3 , Figure 3This is a schematic diagram of the standard reference antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application. In the actual construction, the first antenna component 31 (polarizing material) can be made of copper, the second antenna component 32 (insulating material) can be made of polystyrene foam board, and the third antenna component 33 (receiving line) can be made of low-loss semi-steel wire.

[0053] Step S202: Calculate the actual antenna efficiency of the standard reference antenna in the microwave anechoic chamber.

[0054] It should be noted that the gain value of the physical standard reference antenna in the three-dimensional direction in the microwave anechoic chamber can be calculated; the efficiency of the physical antenna can be obtained by performing an integral averaging operation on the gain value in the spherical direction.

[0055] Step S203: Calculate the theoretical difference based on the simulated antenna efficiency and the physical antenna efficiency.

[0056] In one possible implementation, the voltage standing wave ratio (VSWR) of the simulated and physical standard reference antennas can be 2.4 GHz, with a VSWR difference of 0.3. The resonant points of both the simulated and physical antennas are in the range of 2.4–2.48 GHz. The simulated ZX / ZY / XY direction gain values ​​and the physical ZX / ZY / XY direction gain values ​​show consistent trends, with the simulated gain values ​​in each direction being larger than the corresponding physical gain values. The relationship between antenna gain and antenna efficiency is obtained using the traditional efficiency formula:

[0057]

[0058] Where TRP is the radiated power of the antenna, and Pt is the power at the input antenna feed point. For in spatial direction Position gain.

[0059] Reference Figure 4 , Figure 4 This is a schematic diagram of the simulated antenna efficiency of the standard reference antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application. The horizontal axis represents the antenna resonant frequency, and the vertical axis represents the simulated antenna efficiency. Using the 2.44GHz center point as a reference, the simulated antenna radiation efficiency is -0.09686825dB, and the actual antenna radiation efficiency is -1.106278316dB.

[0060] Furthermore, the theoretical loss parameters include: the theoretical loss of the RF circuit and the theoretical loss of the coaxial cable. The theoretical loss of the RF circuit can be calculated based on the structural design of the matching components on the PCB board in the RF matching circuit structure; and the theoretical loss of the coaxial cable can be calculated based on the diameter and length of the coaxial cable on the PCB board in the RF matching circuit structure.

[0061] In the first possible implementation, the RF matching circuit uses an FR-4 substrate with copper traces. The RF matching circuit needs to be simulated using series and parallel components designed for actual use. If there are no parallel components in the RF matching circuit, only a 0Ω resistor is connected in series. The theoretical loss of the RF matching circuit at different frequencies is calculated using simulation software. In the second possible implementation, if the RF matching circuit does not have a reserved matching bit and only has a microstrip line, the theoretical loss of that microstrip line at different frequencies is calculated using simulation software.

[0062] It should be understood that the solution for the theoretical loss of the RF matching circuit can be regarded as a two-port network. The scattering parameters of the two-port network can be solved, including: input reflection coefficient s11, forward transmission coefficient s21, reverse transmission coefficient s12, and output reflection coefficient s22. Among them, s21 is the theoretical loss of the RF matching circuit.

[0063] Furthermore, for the theoretical loss of the coaxial line, the dielectric constant and loss tangent of the coaxial line can be obtained using a network analyzer and simulation software based on the diameter and length of the coaxial line on the PCB board in the RF matching circuit structure; a two-port network of the coaxial line can be constructed using the dielectric constant and loss tangent of the coaxial line, and the theoretical loss of the coaxial line can be obtained based on the scattering parameters of the two-port network of the coaxial line.

[0064] It should be understood that the dielectric constant affects the characteristic impedance of the coaxial cable, and the loss tangent affects its transmission loss; both are related to the diameter and length of the coaxial cable. The dielectric constant and loss tangent of the coaxial cable can be provided by the manufacturer, or their theoretical values ​​can be calculated using ADS simulation software based on the basic formulas for dielectric constant and loss tangent parameters. Similar to the theoretical loss of the aforementioned RF matching circuit, the coaxial cable can also be considered as a two-port network, and the calculated s21 represents the theoretical loss of the coaxial cable.

[0065] In the first possible implementation, a coaxial cable with a diameter of 0.81 mm and a length of 53.7 mm was selected for the antenna's PCB pads. Its S21 phase and phase were measured using a mesh analyzer; the exported SNP file was then exported to ADS simulation software, and the theoretical dielectric constant of the cable was calculated to be 3.6 and the loss angle to be 0.013, based on the cable's specifications.

[0066] In the second possible implementation, a coaxial cable with a diameter of 1.13 mm and a length of 105 mm was selected for the antenna's PCB pads. Its S21 phase and phase were measured using a mesh analyzer; the exported SNP file was then exported to ADS simulation software, and the theoretical dielectric constant of the cable was calculated to be 3.74 and the loss angle to be 0.0108, based on the cable's specifications.

[0067] Furthermore, a simulation model of the antenna to be designed can be constructed by placing an antenna receiver in the far field of the antenna to be designed; the two-port network of the antenna resonant point is obtained from the simulation model, and the theoretical radiation efficiency of the antenna to be designed is obtained from the scattering parameters of the two-port network of the antenna resonant point.

[0068] It should be understood that the antenna itself is a single-port network, with only s11 existing; by placing an antenna receiver in the far field of the antenna to theoretically form a two-port network, the theoretical radiation efficiency of the antenna to be designed can be obtained by calculating s21 in the scattering parameters of the two-port network.

[0069] Reference Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the first reflection coefficient of the antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application; Figure 6 This is a schematic diagram of the first radiation efficiency of the antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application. Figure 5 The horizontal axis represents the antenna's resonant frequency, and the vertical axis represents the reflection coefficient. The inflection point of the curve in the figure is the antenna's resonant point. Figure 6 The horizontal axis represents the antenna's resonant frequency, and the vertical axis represents the radiation efficiency. In the first possible implementation, the antenna resonant point is at 2.38 GHz, and simulations show that the antenna's first radiation efficiency at this frequency is -0.96 dB.

[0070] Reference Figure 7 and Figure 8 , Figure 7 This is a schematic diagram of the second reflection coefficient of the antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application; Figure 8 This is a schematic diagram of the second radiation efficiency of the antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application. Figure 7 The horizontal axis represents the antenna's resonant frequency, and the vertical axis represents the reflection coefficient. The inflection point of the curve in the figure is the antenna's resonant point. Figure 8 The horizontal axis represents the antenna's resonant frequency, and the vertical axis represents the radiation efficiency. In the second possible implementation, the antenna resonant point is at 2.4 GHz, and simulations show that the antenna's second radiation efficiency at this frequency is -0.315 dB.

[0071] Further, the theoretical difference, the theoretical loss of the RF circuit, the theoretical loss of the coaxial cable, and the theoretical radiation efficiency are added together to obtain the simulated radiation efficiency of the antenna, with reference to... Figure 9 and Figure 10 , Figure 9 This is a schematic diagram of the first simulated radiation efficiency of the antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application. Figure 10 This diagram illustrates the second simulated radiation efficiency of the antenna in Embodiment 2 of the antenna simulation efficiency compensation design method of this application. In the diagram, the horizontal axis represents the antenna's resonant frequency, and the vertical axis represents the simulated radiation efficiency. In the first implementation described above, the antenna resonant point is at 2.38 GHz, and the first simulated radiation efficiency is -2.64408 dB. The actual antenna radiation efficiency measured in a microwave anechoic chamber after manufacturing the antenna under design is -2.699055689 dB. In the second implementation described above, the antenna resonant point is at 2.4 GHz, and the first simulated radiation efficiency is -2.224238 dB. The actual antenna radiation efficiency measured in a microwave anechoic chamber after manufacturing the antenna under design is -2.216209964 dB. It can be seen that, by considering various variables that could lead to discrepancies between simulated and actual efficiency, the simulated radiation efficiency of this antenna is essentially the same as the actual radiation efficiency of the manufactured antenna in a microwave anechoic chamber.

[0072] In this embodiment, a standard reference antenna of the same type as the antenna to be designed is constructed, and the simulated antenna efficiency of the standard reference antenna is obtained. The physical antenna efficiency of the standard reference antenna in the microwave anechoic chamber is measured. The theoretical difference is calculated based on the simulated antenna efficiency and the physical antenna efficiency. The theoretical loss of the RF circuit is calculated based on the structural design of the PCB board matching components in the RF matching circuit structure. The theoretical loss of the coaxial cable is calculated based on the diameter and length of the coaxial cable in the RF matching circuit structure. A simulation model of the antenna to be designed is constructed by placing an antenna receiver in the far field of the antenna to be designed. The theoretical radiation efficiency of the antenna to be designed is obtained based on the two-port network of the antenna resonant point obtained from the simulation model and the scattering parameters of the two-port network of the antenna resonant point. The theoretical difference, the theoretical loss of the RF circuit, the theoretical loss of the coaxial cable, and the theoretical radiation efficiency are summed to obtain the simulated radiation efficiency of the antenna.

[0073] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the antenna simulation efficiency compensation design method of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0074] This application also provides an antenna simulation efficiency compensation design device, please refer to... Figure 11 The antenna simulation efficiency compensation design device includes:

[0075] The difference acquisition module 10 is used to acquire the difference between the simulation efficiency of the standard reference antenna constructed from the antenna to be designed in the simulation software and the theoretical difference between the simulation efficiency and the theoretical difference between the antenna and the microwave anechoic chamber.

[0076] The loss calculation module 20 is used to calculate and obtain theoretical loss parameters based on the radio frequency matching circuit structure and coaxial line parameters of the antenna to be designed.

[0077] The efficiency acquisition module 30 is used to construct a simulation model of the antenna to be designed and to obtain the theoretical radiation efficiency based on the simulation model.

[0078] The efficiency acquisition module 30 is also used to calculate the simulated radiation efficiency of the antenna based on the acquired theoretical difference, the theoretical loss parameter, and the theoretical radiation efficiency.

[0079] Optionally, the difference acquisition module 10 is further configured to construct a standard reference antenna of the same type as the antenna to be designed, and obtain the simulated antenna efficiency of the standard reference antenna; calculate the physical antenna efficiency of the standard reference antenna in the microwave anechoic chamber; and calculate the theoretical difference based on the simulated antenna efficiency and the physical antenna efficiency.

[0080] Optionally, the loss calculation module 20 is further used to calculate the gain value of the physical standard reference antenna in the three-dimensional direction in the microwave anechoic chamber; and to perform an integral mean operation on the gain value in the spherical direction to obtain the efficiency of the physical antenna.

[0081] Optionally, the loss calculation module 20 is further configured to calculate the theoretical loss of the RF circuit based on the structural design of the matching components on the PCB board in the RF matching circuit structure; and to calculate the theoretical loss of the coaxial line based on the diameter and length of the coaxial line on the PCB board in the RF matching circuit structure.

[0082] Optionally, the loss calculation module 20 is further configured to obtain the dielectric constant and loss tangent of the coaxial line using a network analyzer and simulation software based on the diameter and length of the coaxial line on the PCB board in the RF matching circuit structure; construct a two-port network of the coaxial line using the dielectric constant and loss tangent of the coaxial line; and obtain the theoretical loss of the coaxial line based on the scattering parameters of the two-port network of the coaxial line.

[0083] Optionally, the efficiency acquisition module 30 is further configured to add the theoretical difference, the theoretical loss of the radio frequency circuit, the theoretical loss of the coaxial cable, and the theoretical radiation efficiency to obtain the antenna simulation radiation efficiency; and adjust the antenna to be designed based on the obtained antenna simulation radiation efficiency.

[0084] Optionally, the efficiency acquisition module 30 is further configured to construct a simulation model of the antenna to be designed by placing an antenna receiver in the far field of the antenna to be designed; obtain the two-port network of the antenna resonant point based on the simulation model; and obtain the theoretical radiation efficiency of the antenna to be designed based on the scattering parameters of the two-port network of the antenna resonant point.

[0085] The antenna simulation efficiency compensation design device provided in this application, employing the antenna simulation efficiency compensation design method in the above embodiments, can solve the technical problem in the prior art where the simulated efficiency of the antenna differs significantly from the efficiency measured in the actual microwave anechoic chamber. Compared with the prior art, the beneficial effects of the antenna simulation efficiency compensation design device provided in this application are the same as those of the antenna simulation efficiency compensation design method provided in the above embodiments, and other technical features in the antenna simulation efficiency compensation design device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0086] This application provides an antenna simulation efficiency compensation design device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the antenna simulation efficiency compensation design method in the above embodiment 1.

[0087] The following is for reference. Figure 12 The diagram illustrates a structural schematic of an antenna simulation efficiency compensation design device suitable for implementing embodiments of this application. The antenna simulation efficiency compensation design device in this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), and in-vehicle terminals (e.g., in-vehicle navigation terminals), as well as fixed terminals such as digital TVs and desktop computers. Figure 12 The antenna simulation efficiency compensation design device shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0088] like Figure 12 As shown, the antenna simulation efficiency compensation design device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the antenna simulation efficiency compensation design device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to I / O interface 1006: input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and communication devices 1009. Communication device 1009 allows the antenna simulation efficiency compensation design device to communicate wirelessly or wiredly with other devices to exchange data. Although the figure shows an antenna simulation efficiency compensation design device with various systems, it should be understood that it is not required to implement or possess all the systems shown. More or fewer systems can be implemented alternatively.

[0089] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0090] The antenna simulation efficiency compensation design device provided in this application, employing the antenna simulation efficiency compensation design method in the above embodiments, can solve the technical problem in the prior art where the simulated efficiency of the antenna differs significantly from the efficiency measured in the actual microwave anechoic chamber. Compared with the prior art, the beneficial effects of the antenna simulation efficiency compensation design device provided in this application are the same as those of the antenna simulation efficiency compensation design method provided in the above embodiments, and other technical features in this antenna simulation efficiency compensation design device are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0091] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0092] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0093] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the antenna simulation efficiency compensation design method in the above embodiments.

[0094] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0095] The aforementioned computer-readable storage medium may be included in the antenna simulation efficiency compensation design device; or it may exist independently and not assembled into the antenna simulation efficiency compensation design device.

[0096] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0097] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0098] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0099] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described antenna simulation efficiency compensation design method. This solves the technical problem in the prior art where the simulated antenna efficiency differs significantly from the efficiency measured in an actual microwave anechoic chamber. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the antenna simulation efficiency compensation design method provided in the above embodiments, and will not be repeated here.

[0100] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. An antenna simulation efficiency compensation design method, characterized in that, The antenna simulation efficiency compensation design method comprises: obtaining a theoretical difference between a simulation efficiency of a standard reference antenna constructed by a to-be-designed antenna in simulation software and a microwave darkroom; calculating and obtaining a theoretical loss parameter according to a radio frequency matching circuit structure of the to-be-designed antenna and a coaxial line parameter; constructing a simulation model of the to-be-designed antenna, and obtaining a theoretical radiation efficiency according to the simulation model; calculating an antenna simulation radiation efficiency according to the obtained theoretical difference, the theoretical loss parameter and the theoretical radiation efficiency.

2. The antenna emulation efficiency compensation design method of claim 1, wherein, The step of obtaining the theoretical difference between the simulation efficiency of the standard reference antenna constructed by the to-be-designed antenna in the simulation software and the microwave darkroom comprises: constructing a standard reference antenna of the same type as the to-be-designed antenna, and obtaining a simulation antenna efficiency of the standard reference antenna; measuring and calculating a real antenna efficiency of the standard reference antenna in the microwave darkroom; calculating the theoretical difference according to the simulation antenna efficiency and the real antenna efficiency.

3. The antenna emulation efficiency compensation design method of claim 2, wherein, The step of measuring and calculating the real antenna efficiency of the standard reference antenna in the microwave darkroom comprises: calculating a gain value of a three-dimensional direction of the real standard reference antenna in the microwave darkroom; performing spherical direction integral mean operation on the gain value to obtain the real antenna efficiency.

4. The antenna emulation efficiency compensation design method of claim 1, wherein, The theoretical loss parameter comprises a theoretical loss of a radio frequency circuit and a theoretical loss of a coaxial line, and the step of calculating and obtaining the theoretical loss parameter according to the radio frequency matching circuit structure of the to-be-designed antenna and the coaxial line parameter comprises: calculating the theoretical loss of the radio frequency circuit according to a structure design of a PCB board matching component in the radio frequency matching circuit structure; calculating the theoretical loss of the coaxial line according to a coaxial line diameter and length of the PCB board in the radio frequency matching circuit structure.

5. The antenna emulation efficiency compensation design method of claim 4, wherein, The step of calculating the theoretical loss of the coaxial line according to the coaxial line diameter and length of the PCB board in the radio frequency matching circuit structure comprises: obtaining a dielectric constant and a loss tangent value of the coaxial line by using a network analyzer and simulation software according to the coaxial line diameter and length of the PCB board in the radio frequency matching circuit structure; constructing a two-port network of the coaxial line by using the dielectric constant and the loss tangent value of the coaxial line, and obtaining the theoretical loss of the coaxial line according to a scattering parameter of the two-port network of the coaxial line.

6. The antenna emulation efficiency compensation design method of claim 4, wherein, The step of calculating the antenna simulation radiation efficiency according to the obtained theoretical difference, the theoretical loss parameter and the theoretical radiation efficiency comprises: adding the theoretical difference, the theoretical loss of the radio frequency circuit, the theoretical loss of the coaxial line and the theoretical radiation efficiency to obtain the antenna simulation radiation efficiency; The step of calculating the antenna simulation radiation efficiency according to the obtained theoretical difference, the theoretical loss parameter and the theoretical radiation efficiency further comprises: adjusting the to-be-designed antenna according to the obtained antenna simulation radiation efficiency.

7. The antenna emulation efficiency compensation design method of claim 1, wherein, The step of constructing the simulation model of the to-be-designed antenna and obtaining the theoretical radiation efficiency according to the simulation model comprises: constructing the simulation model of the to-be-designed antenna by using an antenna receiver placed in a far field of the to-be-designed antenna; According to the two-port network of the simulation model of the antenna resonance point, the theoretical radiation efficiency of the antenna to be designed is obtained according to the scattering parameter of the two-port network of the antenna resonance point.

8. An antenna emulation efficiency compensation design apparatus, characterized by, The device comprises: a difference obtaining module configured to obtain a theoretical difference between a simulation efficiency of a standard reference antenna constructed by the antenna to be designed and a microwave darkroom in simulation software; a loss calculating module configured to calculate and obtain a theoretical loss parameter according to a radio frequency matching circuit structure of the antenna to be designed and a coaxial line parameter; an efficiency obtaining module configured to construct a simulation model of the antenna to be designed and obtain a theoretical radiation efficiency according to the simulation model; the efficiency obtaining module is further configured to calculate an antenna simulation radiation efficiency according to the obtained theoretical difference, the theoretical loss parameter and the theoretical radiation efficiency.

9. An antenna emulation efficiency compensation design apparatus, characterized by, The device comprises a memory, a processor and a computer program stored on the memory and executable on the processor, and the computer program is configured to implement the steps of the antenna simulation efficiency compensation design method according to any one of claims 1 to 7.

10. A storage medium, characterized by The storage medium is a computer readable storage medium, and the storage medium stores a computer program, and the computer program is executed by the processor to implement the steps of the antenna simulation efficiency compensation design method according to any one of claims 1 to 7.

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