Abstract
The electromagnetic field deposition into a three-layer cylindrical human-body model by a multiloop concentric hyperthermia applicator is investigated analytically. The multiloop radiator axis is taken to be coincident with the cylinder axis. A technique based on the method of separation of variables is used to determine the axisymmetric field in every point. In order to compute the imposed specific absorption rate in the tissues, a numerical integration technique is utilized. Numerical results are presented for several loop geometries at a 13-MHz operation frequency. The possibility of obtaining improved in-depth heating in comparison with conventional single-magnetic-loop applications is investigated. It is shown that significant enhancement of the penetration depth can be obtained by using a simple phased-magnetic-loop system.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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More From: IEEE Transactions on Microwave Theory and Techniques
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