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A Hybrid Computational Electromagnetics Formulation for Simulation of Antennas Coupled to Lossy and Dielectric Volumes

Abd-Alhameed, R A, Excell, Peter S and Mangoud, M A (2004) A Hybrid Computational Electromagnetics Formulation for Simulation of Antennas Coupled to Lossy and Dielectric Volumes.

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Abstract

A heterogeneous hybrid computational electromagnetics method is presented, which enables different parts of an antenna simulation problem to be treated by different methods, thus enabling the most appropriate method to be used for each part. The method uses a standard frequency-domain moment-method program and a finite-difference time-domain program to compute the fields in two regions. The two regions are interfaced by surfaces on which effective sources are defined by application of the Equivalence Principle. An extension to this permits conduction currents to cross the boundary between the different computational domains. Several validation cases are examined and the results compared with available data. The method is particularly suitable for simulation of the behavior of an antenna that is partially buried, or closely coupled with lossy dielectric volumes such as soil, building structures or the human body.

Item Type: Article
Additional Information: This paper was published in IEEE Transactions on Broadcasting in 2004. The definitive version is available at http://dx.doi.org/10.1109/TBC.2004.834008©2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
Keywords: hybrid computational electromagnetics formulation, antennas, lossy, dielectric volumes, frequency domain, equivalence principle, antenna simulation
Divisions: ?? GlyndwrUniversity ??
Depositing User: ULCC Admin
Date Deposited: 05 Oct 2011 09:13
Last Modified: 11 Dec 2017 20:06
URI: http://glyndwr.collections.crest.ac.uk/id/eprint/188

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