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

fYear

1994

fDate

23-27 May 1994

Firstpage

539

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1994., IEEE MTT-S International

Conference_Location

San Diego, CA, USA

ISSN

0149-645X

Print_ISBN

0-7803-1778-5

Type

conf

DOI

10.1109/MWSYM.1994.335454

Filename

335454