Optimizing the FDFD Method in Order to Minimize PML-Related Numerical Problems

Author

Talukder, Prodyut K. ; Schmuckle, Franz-Josef ; Schlundt, Reiner ; Heinrich, Wolfgang

Author_Institution

Ferdinand-Braun-Inst. (FBH), Berlin

fYear

2007

fDate

3-8 June 2007

Firstpage

293

Lastpage

296

Abstract

Using the PML boundary condition in the finite-difference frequency-domain (FDFD) method can significantly affect the numerical condition of the resulting system of equations, causing a drastic increase in the CPU time. This paper presents in-depth investigations of the underlying effects as well as measures to improve numerical convergence. The results are verified for various microwave structures such as a flip-chip interconnect, a multi-layer transition, and a patch antenna. They apply not only to the FDFD method but similarly to other frequency-domain as well as time-domain approaches.

Keywords

computational electromagnetics; finite difference methods; frequency-domain analysis; microwave devices; FDFD; PML boundary condition; finite-difference frequency-domain method; flip-chip interconnect; microwave structures; multilayer transition; patch antenna; perfectly matched layer; Anisotropic magnetoresistance; Central Processing Unit; Computational modeling; Conductivity; Convergence of numerical methods; Equations; Finite difference methods; Frequency domain analysis; Optimization methods; Time domain analysis; Convergence; PML; finite-difference;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium, 2007. IEEE/MTT-S International

Conference_Location

Honolulu, HI

ISSN

0149-645X

Print_ISBN

1-4244-0688-9

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2007.380408

Filename

4263803