Title :
Complete three-dimensional modeling of new microstrip-microslot applicators for microwave hyperthermia using F.D.T.D. method
Author :
Cresson, P.-Y. ; Michel, C. ; Dubois, L. ; Chive, M. ; Pribetich, J.
Author_Institution :
Dept. Hyperfreq. & Semicond., Univ. de Villeneuve D´Ascq, France
Abstract :
Describes a complete 3D modeling using the finite difference time domain (FDTD) method of a new generation of external applicators for microwave hyperthermia used at either at 434 MHz or 915 MHz without any modifications. With this new model, it is possible to obtain theoretical results concerning the variations of the reflection coefficient as a function of frequency, the power deposition inside the heated lossy tissues and the heating patterns. Experimental electromagnetic and thermal characteristics are presented and compared with the theoretical results obtained with the 3D method.<>
Keywords :
biomedical equipment; biothermics; finite difference time-domain analysis; microstrip antennas; modelling; radiation therapy; radiofrequency heating; 434 MHz; 915 MHz; electromagnetic characteristics; external applicators; finite difference time domain modeling; heated lossy tissues; heating patterns; medical therapeutic instrumentation; microstrip-microslot applicators; microwave hyperthermia; reflection coefficient variations; thermal characteristics; Applicators; Electromagnetic heating; Electromagnetic reflection; Finite difference methods; Frequency; Hyperthermia; Microstrip; Microwave generation; Microwave theory and techniques; Time domain analysis;
Conference_Titel :
Microwave Symposium Digest, 1994., IEEE MTT-S International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-1778-5
DOI :
10.1109/MWSYM.1994.335454
