Influence of the shape of the computational domain on the simulation results in the FDTD

Author

Yu, Wenhua ; Yang, Xiaoling ; Liu, Yongjun ; Mittra, Raj ; Lu, Yongquan ; Wang, Pai ; Che, Qing ; Lu, Rui

Author_Institution

Electromagn. Commun. Lab., Pennsylvania State Univ., State College, PA

fYear

2008

fDate

5-11 July 2008

Firstpage

1

Lastpage

4

Abstract

Generally speaking, it is assumed that the smaller the size of the FDTD (finite difference time domain) cell, the better the result will be. In this communication, we show that the shape of the computational domain can significantly influence the accuracy of the results in the FDTD simulation. Specifically, an improper choice for the domain shape can dramatically degrade the FDTD results even if we use a very fine mesh in the simulation. An electromagnetic interference (EMI) problem is used as an example to demonstrate the proper selection process.

Keywords

computational electromagnetics; electromagnetic interference; finite difference time-domain analysis; mesh generation; EMI; FDTD simulation; computational domain shape; electromagnetic interference problem; finite difference time domain; mesh simulation; Apertures; Boundary conditions; Computational modeling; Degradation; Electromagnetic interference; Finite difference methods; High performance computing; Magnetic fields; Shape; Time domain analysis; FDTD; domain shape; mesh;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE

Conference_Location

San Diego, CA

Print_ISBN

978-1-4244-2041-4

Electronic_ISBN

978-1-4244-2042-1

Type

conf

DOI

10.1109/APS.2008.4619357

Filename

4619357