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Time‐domain electric‐field integral equation with central finite difference
Author(s) -
Jung Baek Ho,
Sarkar Tapan Kumar
Publication year - 2001
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10055
Subject(s) - electric field integral equation , integral equation , mathematical analysis , scalar (mathematics) , transient (computer programming) , time domain , electric field , physics , finite difference , scattering , scalar potential , mathematics , classical mechanics , computer science , geometry , optics , quantum mechanics , computer vision , operating system
In this paper, we present a new formulation using the time‐domain electric‐field integral equation (TD–EFIE) to obtain a transient scattering response from arbitrarily shaped conducting bodies. The time derivative of the magnetic vector potential is approximated with a central finite difference, and the scalar potential is time averaged by dividing it into two terms. This approach with an implicit method using central‐difference results in accurate and stable transient scattering responses from conducting objects. Detailed mathematical steps are included, and several numerical results are presented. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 31: 429–435, 2001.