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Inventi Impact - Microwave

Articles

  • Inventi:emw/80/14
    NOVEL APPLICATORS FOR LOCAL MICROWAVE HYPERTHERMIA BASED ON ZEROTH-ORDER MODE RESONATOR METAMATERIAL
    David Vrba, Jan Vrba

    It is demonstrated that a theory of zero-order mode resonator (ZOR) metamaterial (MTM) structure can be used for the development of a novel class of applicators for microwave thermotherapy, for example, for hyperthermia in cancer treatment or for physiotherapy.The main idea of creating such an applicator is to generate and radiate a plane electromagnetic (EM) wave into the treated biological tissue, at least in a certain extent. The main aim of this paper is to investigate whether an EM wave generated by ZORMTM structure and emitted into the biological tissue can produce a homogeneous SAR distribution in the planes parallel to the applicator aperture and achieve a penetration depth approaching the theoretical limit represented by SAR distribution and penetration depth of an ideal EM plane wave. EM field distribution inside a virtual phantom of the treated region generated by the applicator that is based on the proposed ZOR MTMprinciple is investigated using a well-proven full-wave commercial simulation tool.The proposed applicator type shows both a low unwanted leaked electromagnetic field and a fairly homogeneous electric field in its aperture as well as in the virtual phantom of the treated region.

    How to Cite this Article
    CC Compliant Citation: David Vrba and Jan Vrba, “Novel Applicators for Local Microwave Hyperthermia Based on Zeroth-Order Mode Resonator Metamaterial,” International Journal of Antennas and Propagation, vol. 2014, Article ID 631398, 7 pages, 2014. doi:10.1155/2014/631398. Copyright © 2014 David Vrba and Jan Vrba. This is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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