A compact 2-D full-wave finite-difference frequency-domain method for general guided wave structures

Author

Zhao, Yong-jiu ; Wu, Ke-Li ; Cheng, Kwok-Keung M.

Author_Institution

Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, China

Volume

50

Issue

7

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

1844

Lastpage

1848

Abstract

A compact two-dimensional (2-D) full-wave finite-difference frequency-domain method is proposed for the analysis of dispersion characteristics of a general guided wave structure. Because the longitudinal field components are eliminated in the proposed method, only four transverse field components are involved in the final resulting eigen equation. This feature considerably reduces the required CPU time as compared to the existing approaches by which six field components are comprised. Additionally, unlike other 2-D finite-difference schemes that determine the eigenfrequency for a given propagation constant, the new method finds the propagation constant β for a given k_o (frequency). The new method has been verified by examining the computed results of a number of typical guided wave structures with the published results. Very good agreement is achieved

Keywords

dispersion (wave); eigenvalues and eigenfunctions; finite difference methods; frequency-domain analysis; waveguide theory; 2D full-wave finite-difference frequency-domain method; CPU time; dispersion characteristics; eigen equation; eigenfrequency; general guided wave structure; propagation constant; transverse field components; Anisotropic magnetoresistance; Eigenvalues and eigenfunctions; Equations; Finite difference methods; Frequency domain analysis; Helium; Propagation constant; Time domain analysis; Transmission line theory; Two dimensional displays;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2002.800447

Filename

1017652