A finite element method of lines scheme for guided-wave structures

Author

Chen, R.S. ; Yung, Edward K N ; Chan, C.H. ; Wu, Ke

Author_Institution

Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., China

Volume

52

Issue

3

fYear

2004

fDate

3/1/2004 12:00:00 AM

Firstpage

904

Lastpage

907

Abstract

A hybrid scheme that incorporates the method of finite elements, the method of lines, variational techniques, and conformal mapping is proposed for the analysis of guided-wave structures. This technique is devised to analyze complex waveguide structures with irregular composite geometries. High numerical accuracy is maintained by treating key singularities by semianalytical procedures. Compared with the conventional method of lines with finite difference techniques, the proposed scheme is able to solve many complex guided-wave problems with fewer mesh lines without compromise on accuracy. This gain is due to the added variable mesh-directions and the flexibility in the method of finite elements in choosing appropriate functions for fitting the configuration of concern.

Keywords

conformal mapping; mesh generation; method of lines; variational techniques; waveguide theory; complex waveguide structure; conformal mapping; finite element method; guided-wave problem solving; guided-wave structure analysis; lines method; mesh line; semianalytical procedure; variable mesh-direction; variational technique; waveguide irregular composite geometry; Circuit topology; Conformal mapping; Distributed parameter circuits; Finite difference methods; Finite element methods; Geometry; Impedance; Partial differential equations; Propagation constant; Radio frequency;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2004.825496

Filename

1288490