Novel FDTD algorithm with integration loop dependence

Author

Wei-Yang Wu ; Chih-Wen Kuo

Author_Institution

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

Volume

4

fYear

2003

fDate

22-27 June 2003

Firstpage

368

Abstract

PEC or material discontinuity is a challenge to any higher-order FDTD algorithm. In this paper, we develop a new FDTD algorithm relating to the integration loop. This new algorithm has a lower phase error compared to the S24 (second-order-in-time and fourth-order-in-space) method and avoids the crossing of any PEC barrier by using alternative integration path. A cavity resonator is simulated as an illustration of effectiveness of the algorithm and numerical results are compared to those obtained by Yee´s method.

Keywords

Maxwell equations; cavity resonators; computational electromagnetics; finite difference time-domain analysis; frequency response; integration; numerical stability; FDTD algorithm; Maxwell equations; PEC; alternative integration path; cavity resonator; frequency response; integration loop dependence; lower phase error; material discontinuity; nonstandard algorithm; numerical dispersion; resonant frequency; updating equations; Buildings; Cavity resonators; Computer errors; Degradation; Differential equations; Dispersion; Finite difference methods; Frequency; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2003. IEEE

Conference_Location

Columbus, OH, USA

Print_ISBN

0-7803-7846-6

Type

conf

DOI

10.1109/APS.2003.1220196

Filename

1220196