Title :
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
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;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220196
