Efficient Generation of Method of Moments Matrices Using Equivalent Dipole-Moment Method

Author

Yuan, Jiade ; Gu, Changqing ; Han, Guodong

Author_Institution

Coll. of Inf. Sci. & Technol., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

Volume

8

fYear

2009

fDate

7/1/1905 12:00:00 AM

Firstpage

716

Lastpage

719

Abstract

In this letter, the equivalent dipole-moment (EDM) method is applied to compute the matrix elements of the method of moments (MoM) via solving the volume-surface integral equation (VSIE). Besides the advantage of reducing the calculation time significantly, this extended method is unnecessary to treat the boundary condition on the surface of dielectric body and easily constructed by using a simple procedure. The proposed approach can be applied if the distance between the source and the testing basis functions is beyond a threshold distance. Numerical results validate the efficiency and accuracy of the generated matrix elements, and the radar cross-section (RCS) has been verified.

Keywords

boundary-value problems; computational electromagnetics; electric moments; integral equations; matrix algebra; method of moments; boundary condition; dielectric body; equivalent dipole-moment method; method of moments matrices; radar cross-section; testing basis functions; threshold distance; volume-surface integral equation; Electromagnetic scattering; equivalent dipole-moment (EDM); method of moments (MoM); radar cross-section (RCS);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2009.2024337

Filename

5061872