A memory-efficient FDTD algorithm for solving Maxwell equations in cylindrical grids

Author

Yu, Tongbin ; Zhou, Bihua

Author_Institution

EMP Lab., Nanjing Eng. Inst., Nanjing Jiangsu, China

Volume

52

Issue

5

fYear

2004

fDate

5/1/2004 12:00:00 AM

Firstpage

1382

Lastpage

1384

Abstract

A memory-efficient finite-difference time-domain (FDTD) algorithm for solving Maxwell equations in cylindrical grids is introduced. In the proposed algorithm, two equations that spatially link the three electric-field and three magnetic-field components respectively are used to eliminate one component each of E and H. This enables us to get a direct memory reduction of 33% in the storage of the fields by using a spatial field updating procedure. A numerical example considering a two dimensional case is presented to validate the efficiency of the proposed algorithm.

Keywords

Maxwell equations; electric fields; finite difference time-domain analysis; magnetic fields; monopole antennas; FDTD algorithm; Maxwell equation; cylindrical coordinate; cylindrical grid; electric-field component; magnetic-field component; memory-efficient finite-difference time-domain; spatial field updating procedure; EMP radiation effects; Finite difference methods; Maxwell equations; Time domain analysis; Cylindrical coordinates; FDTD; finite-difference time-domain; memory-efficient; methods;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2004.827508

Filename

1296853