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Proceedings Paper

Hertz vector and current distribution of microstrip spiral antenna in biological stratified media
Author(s): Li Gao; Xun-Xian Xiang
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Paper Abstract

The Hertz vectors of the horizontal electric dipole in stratified biological media are derived from spectral domain wave matrii method. By using the Fourier-Bessel transformation we have obtained the solution of the hertz vectors in space domain. The electric field tangential to the microstrip antenna arm is derived by using the relationship between the hertz vectors and the electric field. In order to get the current distribution of the antenna arm the moment method is used. We have also analysed the Sommerfeld-type integrals which emerged in the process of finding the solution. It is important to find the current distribution for determining the parameters of antenna and finding the power deposition in biological media. l. TIIE hERTZ VECTORS OF HORIZONTAL ELECTRIC DIPOLE IN BIOLOGICAL STRATIFIED MEDIA The hertz vectors of electric dipole can be derived by using the spectral domain transmission coefficient method'' while the wave matrix method is useful to dealing with the reflection and transmission of the electromagnetic wave in stratified media2 the wave propagation inwhich ithas been studied''_ ''. The structurQ analysed in this paper is shown in Fig. 1. The Hertz vectors of electric dipole in biological stratified media are determined by using the wave matrix method. In Fig. I plane f is the nominal field plane and the source plane coincides with the interface B. At the interface B when you look in the 4 z

Paper Details

Date Published: 22 September 1993
PDF: 5 pages
Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); doi: 10.1117/12.156504
Show Author Affiliations
Li Gao, Huazhong Univ. of Science and Technology (China)
Xun-Xian Xiang, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 2101:
Measurement Technology and Intelligent Instruments
Li Zhu, Editor(s)

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