Journal of Microwave Power and Electromagnetic Energy (JMPEE)

 

TITLE

Electric Field Distributions of Waveguide Arrays for Local Tumor Hyperthermia [PDF]

AUTHORS

C. Becerra and J. Rebollar

1988

23

4

247-254

YEAR

VOLUME

ISSUE

PAGES

 

Abstract

Total electric field distributions in muscle and fat tissues, due to colinear rectangular waveguide arrays at 2.45 GHz and 915 MHz were calculated. The effect of phase difference between incident phases on the field pattern is shown. Phase adjustment is capable of furnishing control of either field-size or focused field performance of the multi-element, direct contact applicator. The tissue-applicator junction is analyzed by means of the Generalized Scattering Matrix (GSM) of the generalized 2-port discontinuity, assuming that the lossy homogeneous tissue is immersed in a large waveguide. This method provides an exact calculation of multimodal fields, as well as reflection and coupling coefficients in the apertures.

 

Key Words:

Hyperthermia, multi-applicators, Modal Analysis