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Array antenna electromagnetic characteristic solving method based on finite element region decomposition

A technology of array antenna and electromagnetic characteristics, which is applied in the field of solving the electromagnetic characteristics of array antennas, can solve the problems that the calculation accuracy and solution efficiency of the electromagnetic characteristics of irregular array antennas cannot be guaranteed at the same time, so as to reduce the solution time, geometric modeling and grid The effect of simple subdivision and reduction of computing memory

Active Publication Date: 2021-02-05
XIDIAN UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to address the defects in the above-mentioned prior art, and propose a method for solving the electromagnetic characteristics of array antennas based on finite element domain decomposition, which is used to solve the problem that the calculation accuracy and solution efficiency cannot be guaranteed at the same time when solving the electromagnetic characteristics of irregular array antennas The problem

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  • Array antenna electromagnetic characteristic solving method based on finite element region decomposition
  • Array antenna electromagnetic characteristic solving method based on finite element region decomposition
  • Array antenna electromagnetic characteristic solving method based on finite element region decomposition

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[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] refer to figure 1 , to further describe the specific steps for realizing the present invention.

[0041] Step 1, create a unit geometry model.

[0042]Select a unit structure of the array antenna with the same structure to be solved for electromagnetic characteristics, and perform geometric modeling on the selected unit structure according to the design size of the selected unit structure and the continuity of the boundary surface between the selected unit and other units, A geometric model of the selected unit corresponding to the design requirements is obtained.

[0043] Combine below ...

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Abstract

The invention provides an array antenna electromagnetic characteristic solving method based on finite element region decomposition, and aims to give consideration to the calculation precision, solvingcapability and efficiency of solving the electromagnetic characteristics of a large array antenna at the same time, and the method comprises the following specific steps: (1) creating a unit geometric model; (2) setting materials and boundary conditions; (3) generating unit grids; (4) translating and copying the unit grids; (5) replacing the material and boundary attributes of the non-structuralunit; (6) solving by adopting a finite element region decomposition method; and (7) calculating electromagnetic characteristics. According to the invention, a finite element region decomposition method is applied to electromagnetic characteristic solution of the array antenna, so that the difficulty in geometric modeling and mesh generation of the large array antenna is reduced, and both the solution precision and the solution efficiency are considered.

Description

technical field [0001] The invention belongs to the technical field of antennas, and further relates to a method for solving electromagnetic characteristics of an array antenna based on a finite element method and an area decomposition algorithm in the technical field of electromagnetic fields and microwaves. By solving the electromagnetic characteristics of the array antenna, the invention can be applied to design the array antenna with any shape. Background technique [0002] Array antennas are a very typical electromagnetic periodic structure problem. Periodic structures are periodic arrays formed by the arrangement of the same units according to certain rules. It has a wide range of applications in the fields of electromagnetic fields and microwave technology, such as array antennas, frequency selective surfaces, and photon bands. Gap structures and metamaterials, etc. With the continuous growth of application requirements, the electromagnetic periodic structure present...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23
CPCG06F30/23Y02E60/00
Inventor 左胜司兆彬张玉赵勋旺林中朝
Owner XIDIAN UNIV
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