Frequency-domain electromagnetic scattering characteristic analysis method for dielectric object with cylindrical periodic characteristics

A technology of electromagnetic scattering characteristics and medium targets, applied in the field of numerical calculation of electromagnetic scattering characteristics of targets, can solve problems such as multiple computing resources, and achieve the effects of simple modeling, memory saving, and reduction of unknowns

Inactive Publication Date: 2015-11-25
NANJING UNIV OF SCI & TECH
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Problems solved by technology

This means that more computing resources are required

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  • Frequency-domain electromagnetic scattering characteristic analysis method for dielectric object with cylindrical periodic characteristics
  • Frequency-domain electromagnetic scattering characteristic analysis method for dielectric object with cylindrical periodic characteristics
  • Frequency-domain electromagnetic scattering characteristic analysis method for dielectric object with cylindrical periodic characteristics

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[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0013] combine figure 1 , the frequency-domain electromagnetic scattering characteristic analysis method of the dielectric target of the cylindrical periodic characteristic of the present invention, the steps are as follows:

[0014] The first step, according to the equivalence principle, establishes the medium target PMCHW equation.

[0015] n ^ × { jω [ A e ( r ) + A d ( r ...

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Abstract

The invention discloses a frequency-domain electromagnetic scattering characteristic analysis method for a dielectric object with cylindrical periodic characteristics. When the electromagnetic scattering characteristics of the dielectric object with a cylindrical periodic structure is calculated by adopting a surface area integral equation (PMCHW), the whole object with the periodic structure needs to be subjected to electromagnetic modeling, and a modeling mode is relatively cumbersome especially for a complicated structure with more cycles. For the object with the cylindrical periodic characteristics, the object can be calculated with a discrete rotational symmetric method (DBOR) and only one complete periodic region in the periodic structure needs to be modeled, so that the establishment of a complicated model is avoided, the unknown quantity of subdivision is reduced, the matrix filling time is greatly shortened, and a memory is saved.

Description

technical field [0001] The invention belongs to the numerical calculation technology of target electromagnetic scattering characteristics, in particular to a method for analyzing frequency-domain electromagnetic scattering characteristics of cylindrical periodic structure medium targets. Background technique [0002] In modern science and engineering applications, due to the continuous increase in the operating frequency of various electronic devices, the electrical size (ratio of the physical size to the wavelength of electromagnetic waves) of many objects is also increasing, which leads to problems when numerical calculation methods are used to deal with problems. The unknown quantity generated is also increasing, and the consumed computer memory is also multiplied, resulting in a great consumption of computing resources. Among the electromagnetic scattering problems of many electrically large and complex targets that are usually dealt with, many research targets have cert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 陈如山樊振宏丁大志程光尚
Owner NANJING UNIV OF SCI & TECH
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