Discrete Green's function formulation of the FDTD method and its application in antenna modeling

被引：37

作者：

Ma, WL ^{[1
]}

Rayner, MR ^{[1
]}

Parini, CG ^{[1
]}

机构：

[1] Univ London Queen Mary & Westfield Coll, London E1 4NS, England

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2005年 / 53卷 / 01期

关键词：

absorbing boundary condition (ABC); discrete Green's function (DGF); finite-difference time-domain (FDTD) method;

D O I：

10.1109/TAP.2004.838797

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 [电气工程]; 0809 [电子科学与技术];

摘要：

A discrete Green's function formulation of the finite-difference time-domain (DGF-FDTD) method based on both discrete system theory and the FDTD method has been developed, which expresses the field response as a convolution of current sources and the impulse response of the FDTD equation system. The DGF-FDTD method presents the FDTD equations in a different perspective from the conventional Yee algorithm. It avoids the computational difficulties such as the need for computation of free-space nodes and absorbing boundary conditions of the classic FDTD method. The ability of the DGF-FDTD method to model on antenna is demonstrated by the modeling of a Yagi-Uda array antenna with considerable saving in memory usage.

引用

页码：339 / 346

页数：8

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