A large-scale finite period array structure characteristic mode analysis method

A periodic array and structural feature technology, applied in special data processing applications, instruments, design optimization/simulation, etc., can solve the problem that the characteristic mode analysis method cannot be applied to large-scale finite periodic array structures, etc.

Active Publication Date: 2018-12-07
ANHUI UNIVERSITY
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Problems solved by technology

[0007] The purpose of the present invention is to solve the defect that the eigenmode analysis method in the prior art cannot be applied to a large-scale finite period array structure, and to provide a large-scale finite period array structure eigenmode analysis method to solve the above problems

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  • A large-scale finite period array structure characteristic mode analysis method
  • A large-scale finite period array structure characteristic mode analysis method
  • A large-scale finite period array structure characteristic mode analysis method

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[0097] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:

[0098] Such as figure 1 Shown, a kind of large-scale finite period array structure feature pattern analysis method described in the present invention, comprises the following steps:

[0099] The first step is the geometric modeling and subdivision of large-scale finite periodic array structures. Using the geometrical structure characteristics, the reference unit is modeled and subdivided to obtain discrete grid information, and the geometric information of all units is obtained through spatial translation. Here, when geometrically modeling a large-scale finite period array structure, only a single unit needs to be modeled and subdivided to obtain discrete information, and other units can be obtained through spatial translation, which...

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Abstract

The invention relates to a large-scale finite period array structure characteristic mode analysis method, which solves the defect that the characteristic mode analysis method cannot be applied to thelarge-scale finite period array structure compared with the prior art. The invention comprises the following steps: carrying out geometric modeling and division of a large-scale finite period array structure; establishing an eigenvalue equation based on the electric field integral equation for the reference cell; performing computation of the eigenmodes of a large-scale finite-period array structure. The invention can remarkably reduce the number of unknown quantities of the matrix characteristic equation of the periodic array, and greatly reduce the calculation memory and the calculation timerequired.

Description

technical field [0001] The invention relates to the technical field of numerical calculation of electromagnetic characteristics of periodic array structures, in particular to a method for analyzing characteristic modes of large-scale finite periodic array structures. Background technique [0002] Large-scale finite periodic array structures are widely used in wireless communication and radar engineering fields, such as phased array antennas, reflectarray antennas, frequency selective surfaces, and electromagnetic metasurfaces. When designing finite periodic array structures, the most common approach is to use full-wave electromagnetic calculation methods combined with optimization algorithms. But this design approach doesn't provide much physical information about how the array works. [0003] The eigenmode analysis method that has emerged in recent years is a new method for solving electromagnetic problems by combining the method of moments with eigenmode theory, which can...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 程光尚黄志祥方明牛凯坤赵冉任信钢张华永
Owner ANHUI UNIVERSITY
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