Title :
Enhanced electromagnetic power deposition in a lossy medium
Author :
Nabulsi, Khalid A. ; Wait, James R.
Author_Institution :
Dept. of Electr. & Computer. Eng., Arizona Univ., Tucson, AZ, USA
fDate :
6/1/1993 12:00:00 AM
Abstract :
It is demonstrated that an aperture antenna, excited by a leaky wave, will transfer power into an homogeneous lossy half-space at levels exceeding expectation. However, such local enhancements are only possible in the near-field region in the central part of the array. With the proper choice of parameters, enhancements of the order of 15 dB can be achieved. The calculated results are relevant to hyperthermic heating in cancer therapy and to related problems in biological hazards
Keywords :
antenna arrays; antenna theory; biothermics; electromagnetic wave transmission; radiation therapy; antenna array; aperture antenna; biological hazards; cancer therapy; electromagnetic power deposition; homogeneous lossy half-space; hyperthermic heating; leaky wave excitation; lossy medium; Aperture antennas; Biohazards; Cancer; Conductors; Heating; Hyperthermia; Integral equations; Magnetic fields; Maxwell equations; Medical treatment;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
