A hybrid MoM/FDTD technique for studying human head/antenna interactions

1998 IEEE-APS Conference on Antennas and Propagation for Wireless Communications (Cat. No.98EX184) Pub Date : 1998-11-01 DOI:10.1109/APWC.1998.730652

E. Forgy, W. Chew, J. Jin

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引用次数: 8

Abstract

As advances in numerical methods for solutions to Maxwell's equations accelerate, larger and more complex electromagnetic problems are becoming tractable at an astounding rate. The science of computational electromagnetics (CEM) gains inertia with each passing day. The maturing field of CEM research has sprouted various branches of research. The finite-difference time-domain (FDTD) method, introduced in 1966 by Yee (1966), and pioneered by Taflove (1995), among others, since 1975, provides a simple and robust method for simulating the propagation of electromagnetic radiation through complex media, e.g., human tissue. Although the FDTD method performs superbly for such propagation simulations, it is not very well suited for modeling complex metallic structures, e.g., antennas. Conversely, a distinct branch of CEM research, the method of moments (MoM), is superior for modeling complex metallic structures and is not very well suited for propagation through complex media, such as human tissue. In this paper, a hybrid MoM/FDTD method for simulating the interaction of antennas with the human head is presented.

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一种用于研究人类头部/天线相互作用的混合MoM/FDTD技术

随着求解麦克斯韦方程组的数值方法的加速发展，更大更复杂的电磁问题正以惊人的速度变得易于处理。计算电磁学(CEM)的发展日新月异。电磁学研究的日趋成熟，催生了各种研究分支。时域有限差分(FDTD)方法，由Yee(1966)于1966年引入，Taflove(1995)等人首创，自1975年以来，为模拟电磁辐射在复杂介质(如人体组织)中的传播提供了一种简单而稳健的方法。虽然FDTD方法在这种传播模拟中表现出色，但它不太适合模拟复杂的金属结构，例如天线。相反，CEM研究的一个独特分支，矩量法(MoM)，对于复杂金属结构的建模是优越的，但不太适合在复杂介质(如人体组织)中传播。本文提出了一种用于模拟天线与人头部相互作用的混合MoM/FDTD方法。

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1998 IEEE-APS Conference on Antennas and Propagation for Wireless Communications (Cat. No.98EX184)

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