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- Title
Stable Implicit Scheme for TM Transient Scattering from 2D Conducting Objects Using TD-EFIE.
- Authors
Qiang Wang; Lixin Guo; Pengju Yang; Zhongyu Liu
- Abstract
To improve stability of time-domain integral equation, a stable implicit scheme is proposed to solve the transverse-magnetic (TM) electromagnetic scattering from 2D conducting objects. The time-domain electric-field integral equation (TD-EFIE) was adopted and expressed using second-order derivative of the magnetic vector potential. To reduce numerical error, the magnetic vector potential was approximated by second-order central finite difference. TM transient scattering from 2D conducting objects was calculated by an implicit marching-on-in-time (MOT) scheme. To obtain stable numerical results, the TD-EFIE MOT implicit scheme was firstly combined with the time-averaging technique. The accuracy and stability of the scheme were demonstrated by comparison with the results from inverse discrete Fourier transform technique.
- Subjects
ELECTROMAGNETIC wave scattering; ELECTRIC field integral equations; FINITE difference method
- Publication
Progress in Electromagnetics Research Letters, 2018, Vol 73, p99
- ISSN
1937-6480
- Publication type
Article
- DOI
10.2528/pierl18011705