Electromagnetic energy deposition inside a three-layer cylindrical human body model caused by near-field radiators

Author

Cottis, P.G. ; Chatzarakis, G.E. ; Uzunoglu, N.K.

Author_Institution

Dept. of Electr. Eng., Nat. Tech. Univ. of Athens, Greece

Volume

38

Issue

8

fYear

1990

fDate

8/1/1990 12:00:00 AM

Firstpage

990

Lastpage

999

Abstract

The electromagnetic power distribution inside a three-layer cylindrical model irradiated by a loop or an aperture antenna is examined. The cylindrical configuration has been adopted to represent parts of the human body with similar shape, such as the torso or limb. The complex electromagnetic problem is formulated with the aid of the Green´s function theory. The Green´s function for the three-layer cylindrical structure is determined as the response to a unit excitation located outside the cylinder. The response to the radiators under examination is found. Numerical results are presented for several radiator dimensions and locations. A new applicator with enhanced penetration depth is proposed

Keywords

Green´s function methods; biological effects of microwaves; physiological models; radiation therapy; EM energy deposition; Green´s function theory; aperture antenna; applicator; complex electromagnetic problem; electromagnetic power distribution; enhanced penetration depth; limb; near-field radiators; three-layer cylindrical human body model; torso; Aperture antennas; Applicators; Biological system modeling; Electromagnetic modeling; Electromagnetic radiation; Green´s function methods; Humans; Power distribution; Shape; Torso;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.57322

Filename

57322