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International Journal of Antennas and Propagation
Volume 2012 (2012), Article ID 389214, 7 pages
Research Article

Flexible Dual-Frequency Applicator for Local Hyperthermia

1Instrumentation Laboratory, Faculté d’Electronique et d’Informatique, Université USTHB, BP 32, El Alia, Bab-Ezzouar, 16111 Algiers, Algeria
2Microwave Laboratory, UCL University, Batiment Maxwell, 3 Place du Levant, P.O. Box 1348, Belgium
3LCIS Laboratory, ESISAR, Grenoble INP, 50 Rue B. de Laffemas, BP 54, 26902 Valence, France

Received 30 March 2012; Accepted 4 June 2012

Academic Editor: Ahmed A. Kishk

Copyright © 2012 Houda Halheit et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A flexible and dual-frequency microstrip applicator for microwave local hyperthermia is described. It is designed on conformal liquid crystal polymer (LCP) substrate and operating at ISM (Industrial, Scientific and Medical) frequencies of 915 MHz and 2.45 GHz. To conform the body’s curvature, the applicator is bent on a cylindrical body. 3D electromagnetic CST Microwave Studio was used to determine the performance of the applicator and to evaluate the specific absorption rate (SAR) distribution in cylindrical human body phantom. The results obtained show that the antenna can be used in curved situation for uniform and superficial treatment.