𝔖 Bobbio Scriptorium
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Near-field absorption in a circular cylinder from electric and magnetic line sources

✍ Scribed by N. Morita; J. Bach Andersen

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
619 KB
Volume
3
Category
Article
ISSN
0197-8462

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✦ Synopsis

Abstract

A homogeneous, lossy circular cylinder is used as a simple model of a biological object in which interior heating is produced by the absorption of electromagnetic waves. For this model, we determined the optimum frequency, polarization, orientation and shape of applicators. Analytical and numerical results are given for both electric and magnetic line sources, with three different polarizations relative to the cylinder. Coupling efficiencies and contour plots are presented for a range of parameters. One particularly interesting result is the production of maximum energy deposition at the center of a cylinder of muscle tissue when exposed in the 100‐MHz frequency range by the use of four applicators surrounding the cylinder.

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In this paper, a previously proposed analytical procedure for the computation of the specific absorption rate (SAR) inside a biological elliptic cylinder model is extended to the case in which the body is illuminated under near-field conditions. The elliptic model is made up of layers of different b