ENHANCED ELECTROMAGNETIC POWER DEPOSITION IN A LOSSY MEDIUM

Citation
Ka. Nabulsi et Jr. Wait, ENHANCED ELECTROMAGNETIC POWER DEPOSITION IN A LOSSY MEDIUM, IEEE transactions on antennas and propagation, 41(6), 1993, pp. 723-726
Citations number
7
Categorie Soggetti
Telecommunications,"Engineering, Eletrical & Electronic
ISSN journal
0018926X
Volume
41
Issue
6
Year of publication
1993
Pages
723 - 726
Database
ISI
SICI code
0018-926X(1993)41:6<723:EEPDIA>2.0.ZU;2-7
Abstract
It is demonstrated that an aperture antenna, excited by a leaky wave, will transfer power into an homogeneous lossy half-space at levels exc eeding expectation. However, such local enhancements are only possible in the near-field region in the central part of the array. Neverthele ss, with the proper choice of parameters, enhancements of the order of 15 dB can be achieved. The calculated results are relevant to hyperth ermic heating in cancer therapy and to related problems in biological hazards.