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
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.