Title :
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
fDate :
8/1/1990 12:00:00 AM
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;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
