Antenna irregular wave port modeling and directional diagram solving method based on moment method

A technique of moment method and direction diagram, applied in design optimization/simulation, special data processing applications, etc., can solve the problems of insufficient electromagnetic modeling ability and limited scope of application, and achieve the goal of broadening electromagnetic modeling ability and engineering application scope Effect

Active Publication Date: 2021-09-24
XIDIAN UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the existing defects of the above-mentioned prior art, and propose a method for modeling and solving the pattern of the antenna irre

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  • Antenna irregular wave port modeling and directional diagram solving method based on moment method
  • Antenna irregular wave port modeling and directional diagram solving method based on moment method
  • Antenna irregular wave port modeling and directional diagram solving method based on moment method

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Embodiment Construction

[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0047] Refer to attached figure 1 , the present invention comprises the following steps:

[0048] Step 1. Determine the port surface of the antenna;

[0049] In the embodiment of the present invention, the initial waveguide model obtained by using modeling software, referring to the attached figure 2 , attached image 3 , attached Figure 4 And attached Figure 5 , the present invention adopts four antenna models fed by different wave ports as research objects. First, it is necessary to determine the position of the antenna wave port, that is, to obtain the maximum and minimum values ​​of the abscissa and the minimum value of the wave port and the maximum and minimum values ​​of the ordinate.

[0050] Step 2. Create a rectangular area A covering the electromagnetic field plane of the antenna wave port;

[0051] Create a rectan...

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Abstract

The invention provides an antenna irregular wave port modeling and directional diagram solving method based on a moment method. The antenna irregular wave port modeling and directional diagram solving method comprises the following implementation steps: 1) performing grid division on an electromagnetic field plane of an antenna model wave port; 2) determining electromagnetic field modes satisfied by wave ports of different types of antennas; 3) determining an equation conforming to an antenna wave port; 4) acquiring an approximate difference format of an operator L in an equation which the antenna wave port conforms to; 5) solving an equation satisfied by an antenna wave port surface by adopting a moment method; 6) obtaining a solving result of the antenna wave port mode; and 7) solving an antenna radiation pattern. According to the method, the two-dimensional moment method for solving the wave port mode and the three-dimensional moment method for solving the antenna pattern are combined, the application range of the wave port model of the moment method is widened from a regular waveguide to an irregular waveguide, the problems that in the prior art, the wave port modeling capacity is insufficient, and the application range is limited are solved, and the method is used for solving practical engineering problems.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic simulation, and relates to a method for modeling an antenna irregular wave port and solving a pattern, in particular to a method for modeling an antenna irregular wave port and solving a pattern based on the method of moments. Background technique [0002] In wireless communication, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, radio astronomy and other projects, all those that use electromagnetic waves to transmit information rely on antennas to work. An antenna is a transformer that transforms the guided wave propagating on a transmission line or waveguide into an electromagnetic field propagating in an unbounded medium (usually free space), or vice versa, so the antenna is used to transmit or receive electromagnetic waves device of. The waveguide is an important feeding structure of the antenna, and it is of great theoretical and engineering s...

Claims

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Application Information

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IPC IPC(8): G06F30/23
CPCG06F30/23
Inventor 赵勋旺吴越丁宁林中朝张玉
Owner XIDIAN UNIV
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