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Electromechanical comprehensive analysis method for conformal load-bearing antenna

A comprehensive analysis and electromagnetic analysis technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems affecting the analysis accuracy of antenna performance, and achieve the solution to the difference between the conformal bearing antenna structure grid and the electromagnetic grid. The effect of matching, shortening modeling cycle and improving accuracy

Active Publication Date: 2018-08-14
XIDIAN UNIV
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Problems solved by technology

[0006] The mismatch between the error mathematical model and the structural model and the electromagnetic model leads to an equivalent simplification of the error factors in the electromagnetic analysis, which seriously affects the accuracy of the antenna performance analysis

Method used

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  • Electromechanical comprehensive analysis method for conformal load-bearing antenna
  • Electromechanical comprehensive analysis method for conformal load-bearing antenna
  • Electromechanical comprehensive analysis method for conformal load-bearing antenna

Examples

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Embodiment Construction

[0059] In this embodiment, the antenna we use is a circular microstrip patch antenna, such as Figure 8 As shown, it is a kind of conformal load-carrying antenna, with a three-layer structure. A layer of metal material is applied on one side of the dielectric substrate as a grounding plate, and a circular metal radiation sheet is pasted on the other side. Finally, the radiation sheet and the grounding plate Add feeder wires in between. Take the dielectric constant ε of the model substrate material r =2.33, the thickness of the substrate is h=0.7mm under the calculation result of the above formula, and the given center frequency f=2.5GHz. The specific structural parameters of the antenna are shown in Table 1.

[0060] Table 1 The specific structural parameters of the conformal load-carrying antenna used in the simulation example

[0061]

[0062] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodime...

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Abstract

The invention discloses an electromechanical comprehensive analysis method for a conformal load-bearing antenna. The method comprises the steps of 1, obtaining surface test data of the conformal load-bearing antenna; 2, building an error information mathematic model in MATLAB; 3, importing the error information mathematic model in CAD to generate a three-dimensional polygonal curved surface grid model; 4, obtaining an error structure model in a *.igs format through polygonal grid-grid-curved surface-entity four-step conversion; 5, building an ideal antenna electromagnetic analysis model, and importing the error structure model to obtain an antenna electromagnetic analysis model; and 6, according to the antenna electromagnetic analysis model, calculating electric performance parameters of the antenna, and if calculation precision requirements are met, finishing calculation, otherwise, repeating the steps 1-6 until the requirements are met. The method has the benefits that (1) the problem of separation of structure analysis and electromagnetic analysis of a planar slot antenna is effectively solved; (2) the modeling cycle of a whole complex antenna is shortened; and (3) the problem of mismatch between structure grids and electromagnetic grids of the conformal load-bearing antenna is effectively solved.

Description

technical field [0001] The invention relates to an electromechanical comprehensive analysis method of an antenna, in particular to an electromechanical comprehensive analysis method of a conformal bearing antenna based on mathematical-structure-electromagnetic model conversion, and belongs to the technical field of antennas. Background technique [0002] The conformal load-carrying antenna is a new type of antenna structure that is consistent with the structure of the carrier platform. It not only has the structure load-bearing function, but also has the ability to transmit and receive electromagnetic signals. Because the conformal load-carrying antenna can achieve a high degree of integration with the carrier, it can meet the stealth, multi-functional, intelligent and high-mobility requirements of future high-performance equipment, so it has become the preferred antenna form for the next generation of fighters and main warships. [0003] Due to the highly integrated structu...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 李娜黄海洲杨国标刘鹏金凡己曾元琛
Owner XIDIAN UNIV
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