Analysis of Numerical Integration Accuracy of Singular Integrals in Moment Method of TDEFIE

Author

Yan-Wen, Zhao ; Qing-Guang, Zhao ; Xi, Luo ; Zai-ping, Nie ; Hai-Yan, Bi

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu

fYear

2006

fDate

1-4 Aug. 2006

Firstpage

386

Lastpage

389

Abstract

The area coordinates, relative coordinates, domain decomposition and general Duffy coordinate transformations are employed to transform the singular integrals (the supports of the basis and test functions have common facet, common edge or common one vertex) of the time-domain electric field integral equation (TDEFIE) into non-singular integrals, which allows to be accurately evaluated. With different temporal basis function (continuous and non-continuous derivative) and different time step size, the comparisons of the accuracy of the proposed method and traditional numerical integral methods are also presented

Keywords

electric field integral equations; electromagnetic wave scattering; integration; method of moments; time-domain analysis; Duffy coordinate transformations; TDEFIE; moment method; numerical integration accuracy; singular integrals; temporal basis function; time-domain electric field integral equation; Bismuth; Extrapolation; Frequency; Integral equations; Moment methods; Scattering; Testing; Time domain analysis; Tin; Transforms; marching-on-in-time (MOT); singular integrals; time-domain electric field integral equations;

fLanguage

English

Publisher

ieee

Conference_Titel

Environmental Electromagnetics, The 2006 4th Asia-Pacific Conference on

Conference_Location

Dalian

Print_ISBN

1-4244-0183-6

Type

conf

DOI

10.1109/CEEM.2006.257977

Filename

4027309