Efficient Generation of FDTD Subcells Using Krylov Subspace Technique to the Wave Equation

Author

Su, Hsin-Hsiang ; Kuo, Chih-Wen

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung

Volume

17

Issue

4

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

280

Lastpage

282

Abstract

This letter describes an efficient method for generating finite difference time domain (FDTD) subcells directly from the wave equation. An efficient macromodel technique is employed to reduce the number of internal state variables for a region functioning as a subcell in the FDTD method. Using a system of second-order state space equations to generate macromodels for objects with fine structural details, the macromodels are constructed with fewer internal state variables. The proposed method is tested against a couple of scattering examples to show the accuracy and efficiency

Keywords

finite difference time-domain analysis; state-space methods; wave equations; FDTD subcells; Krylov subspace technique; finite difference time domain subcells; macromodel technique; model order reduction; second-order state space equations; wave equation; Electromagnetic modeling; Electromagnetic scattering; Finite difference methods; Grid computing; Material properties; Maxwell equations; Partial differential equations; State-space methods; Testing; Time domain analysis; Finite difference time domain (FDTD); model order reduction (MOR);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2007.892971

Filename

4141088