Homogenous microwave near-field power focusing using the electric field
conjugate method and a cylindrical antenna array
AbstractIn this paper, a microwave near-field power focusing approach is
proposed using a cylindrical circumferential array of electric line
sources for any arbitrary homogenous medium with zero magnetic losses.
In order to focus the dissipated power at the arbitrary desired point,
an efficient way to obtain the excitation phases of the array elements
is provided using the theoretical analysis of the complex conjugate of
the electric field. Also, a closed form for the concentrated power is
obtained. Using full-wave simulations, it has been shown that the
theoretical analysis results are well applicable for power focusing
using an array of half-wave dipole antennas.