Analysis of a UWB Hemispherical Antenna Array in FDTD With a Time Domain Huygens Method

被引：12

作者：

Christodoulou, Chrysovalanto ^{[1
]}

Railton, Chris J. ^{[1
]}

Klemm, M. ^{[1
]}

Gibbins, David ^{[1
]}

Craddock, Ian J. ^{[1
]}

机构：

[1] Univ Bristol, Ctr Commun Res, Bristol BS8 1BU, Avon, England

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2012年 / 60卷 / 11期

基金：

英国工程与自然科学研究理事会;

关键词：

Finite difference time domain (FDTD); time-domain Huygens (TDH);

D O I：

10.1109/TAP.2012.2207670

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Electromagnetic modeling is needed in a wide variety of large and complex situations. Existing numerical techniques such as finite difference time domain (FDTD) can, in principle, solve any problem no matter how large or complicated given a sufficiently powerful computer. However, in practice, there remain problems which require more computer power than is available. Recently, the time-domain Huygens (TDH) approach has been shown to be effective for enabling large problems such as propagation on body area networks (BANs) to be modeled in FDTD. In this paper, it is shown that the much larger problem of the conformal antenna array, which is used in the MARIA breast cancer tumor detection system, is also very amenable to this technique with even greater savings in computer resources. Accurate results are obtained using less that a tenth of the resources needed to solve the same problem using existing advanced FDTD tools. The details of how this method is applied, and the choices which need to be made, are discussed.

引用

页码：5251 / 5258

页数：8

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