Automatic generation of subdomain models in 2D FDTD using reduced order modeling

Author

Denecker, Bart ; Olyslager, Frank ; Knockaert, Luc ; De Zutter, Daniël

Author_Institution

Dept. of Inf. Technol., Ghent Univ., Belgium

Volume

10

Issue

8

fYear

2000

fDate

8/1/2000 12:00:00 AM

Firstpage

301

Lastpage

303

Abstract

A new method combining a finite difference method and a reduced order model (ROM) algorithm is presented for two-dimensional (2-D) electromagnetic problems. The problem space is subdivided into subdomains of a generic type. By discretizing the spatial derivatives in a way similar to the finite-difference in time-domain technique (FDTD), the state equations are written down in each subdomain. From that, an FDTD-subdomain model is derived. Finally, the different subdomains are reconnected and the original problem is solved by a leapfrog time-stepping algorithm. Some numerical results are presented to illustrate the new approach

Keywords

electromagnetic wave propagation; finite difference time-domain analysis; reduced order systems; 2D FDTD; electromagnetic problems; leapfrog time-stepping algorithm; problem space; reduced order modeling; spatial derivatives; state equations; subdomain models; Electromagnetic modeling; Equations; Finite difference methods; Frequency; Helium; Read only memory; Reduced order systems; Sparse matrices; Time domain analysis; Two dimensional displays;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.862221

Filename

862221