A unified 3‐D ADI‐FDTD algorithm with one‐step leapfrog approach for modeling frequency‐dependent dispersive media. (24th July 2019)

• Record Type: Journal Article
• Authors: Xie, Guoda; Huang, Zhixiang; Fang, Ming; Wu, Xianliang
• Other Names: Wang Chao‐Fu guestEditor.
• Is Part Of: International journal of numerical modelling. Volume 33:Number 2(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-07-24
• Subjects: leapfrog alternating‐direction‐implicit (LF‐ADI) approach -- finite‐difference time‐domain (FDTD) method -- order reduction scheme -- auxiliary differential equations (ADE) technique; Electric networks -- Mathematical models -- Periodicals; Electronics -- Mathematical models -- Periodicals; 621.3011
• DOI: 10.1002/jnm.2666
• Languages: English
• ISSNs: 0894-3370

Abstract

Abstract: A unified 3‐D alternating‐direction‐implicit finite‐difference time‐domain algorithm with one‐step leapfrog approach is provided for analyzing the frequency‐dependent dispersive media. The dielectric parameter in the frequency domain is described by the modified Lorentz model. Simultaneously, an order reduction scheme is utilized to synchronize the auxiliary differential equations (ADE) technique with the main algorithm. The numerical cases are performed, and the results indicate that the proposed method possesses higher efficiency under allowable accuracy when compared with the analytical method and other time domain numerical schemes.