A Hybrid MM-FDFD Method for the Analysis of Waveguides With Multiple Discontinuities

Author

Zheng, Gang ; Wang, Bing-Zhong

Author_Institution

State Key Lab. of Satellite Ocean Environ. Dynamics, Second Inst. of Oceanogr., Hangzhou, China

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

645

Lastpage

647

Abstract

By combining the mode matching (MM) technique and the finite-difference frequency-domain (FDFD) method, a hybrid method is proposed for computing frequency responses of waveguides with multiple discontinuities. In the method, the computational domain is divided into subdomains, and the final matrix equation is a Schur complement system. In the numerical examples, the method is compared to the classical finite-difference frequency-domain method and the partial eigenfunction expansion finite-difference frequency-domain method. The results show that this method is more efficient and accurate than the others.

Keywords

eigenvalues and eigenfunctions; finite difference methods; frequency response; frequency-domain analysis; matrix algebra; mode matching; waveguides; MM technique; Schur complement system; frequency response; hybrid MM-FDFD method; matrix equation; mode matching; multiple discontinuities; partial eigenfunction expansion finite-difference frequency-domain method; waveguide analysis; Equations; Finite difference methods; Frequency domain analysis; Magnetic fields; Reflection; Vectors; Waveguide discontinuities; Finite-difference frequency-domain (FDFD); mode matching technique; multiple discontinuities; waveguide;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2203779

Filename

6213484