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Auto Reconfigurable Patch Antenna for Biomedical Single Channel Multi-Frequency Microwave Radiometry Applications

By Christos D. Nikolopoulos, Anargyros T. Baklezos, and Christos N. Capsalis
Progress In Electromagnetics Research C, Vol. 49, 19-29, 2014


A small patch antenna is associated with passive (reactively loaded) elements (varactors) in order to auto adjust the resonant frequency in a single-channel multi-frequency configuration appropriate for biomedical applications. As a supplementary study of the authors in the field of detection of temperature abnormalities in human tissue phantom using microwave radiometry, this paper adds a contribution to frequency readjustment when a shift occur due to the fact that the human body is a complex and stratified dielectric object. The optimization of the array is performed using a Genetic Algorithm (GA) tool as a method of choice. The adjustment in the measurement frequency is performed by altering the values of the passive elements according to the shift needed.


Christos D. Nikolopoulos, Anargyros T. Baklezos, and Christos N. Capsalis, "Auto Reconfigurable Patch Antenna for Biomedical Single Channel Multi-Frequency Microwave Radiometry Applications," Progress In Electromagnetics Research C, Vol. 49, 19-29, 2014.


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