Document Type

Article

Date

2001

Embargo Period

12-2011

Keywords

time-domain, electromagnetics, integral equation, finite-difference methods

Language

English

Disciplines

Computer Sciences | Electrical and Computer Engineering

Description/Abstract

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.

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