Exact image method for field calculation in horizontally layered medium above a conducting ground plane
Abstract
It is shown that the inverse Laplace transform of the Fourier domain reflection coefficient of a layered medium can be easily derived by performing the MittagLeffler expansion. Thus exact image theory can be used in field calculations. The radiation pattern is readily deduced from the image functions and the surface wave is also deduced from the field integrals. As applied to microstrip structures, the asymptotic approximations agree with the Sommerfeld formulas.
 Publication:

IEE Proceedings H: Microwaves Antennas and Propagation
 Pub Date:
 August 1986
 Bibcode:
 1986IPMAP.133..297A
 Keywords:

 Antenna Design;
 Antenna Radiation Patterns;
 Electromagnetism;
 Fourier Transformation;
 Laplace Transformation;
 Approximation;
 Electric Dipoles;
 Microstrip Devices;
 Surface Waves;
 Transmission Lines