A numerically efficient technique for the method of moments solution for planar periodic structures in layered media

Author

Kipp, Robert A. ; Chan, Chi H.

Author_Institution

Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA

Volume

42

Issue

4

fYear

1994

fDate

4/1/1994 12:00:00 AM

Firstpage

635

Lastpage

643

Abstract

A numerically efficient technique for the calculation of the method of moments (MoM) impedance matrix is presented for planar periodic structures rendered in arbitrary triangular discretizations and embedded in layer media. The technique is based on the MoM applied to a mixed potential integral equation (MPIE) in conjunction with triangular-domain basis functions. Rapid convergence of the matrix elements is achieved with a hybrid spectral/spatial decomposition of Green´s functions. Transformations of the spectral to spatial Green´s functions for layered media are performed by using complex images. Examples demonstrating the numerical efficiency and accuracy of the method are given

Keywords

Green´s function methods; convergence of numerical methods; electric impedance; electromagnetic field theory; integral equations; matrix algebra; spectral-domain analysis; Green´s functions; complex images; convergence; hybrid spectral/spatial decomposition; impedance matrix; layered media; method of moments; mixed potential integral equation; moments method solution; planar periodic structures; triangular-domain basis functions; Convergence; Dielectrics; Frequency selective surfaces; Impedance; Matrix decomposition; Message-oriented middleware; Moment methods; Nonhomogeneous media; Periodic structures; Transmission line matrix methods;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.285070

Filename

285070