Exact image theory for the problem of dielectric/magnetic slab
Abstract
Exact image method, recently introduced for the exact solution of electromagnetic field problems involving homogeneous half spaces and microstriplike geometries, is developed for the problem of homogeneous slab of dielectric and/or magnetic material in free space. Expressions for image sources, creating the exact reflected and transmitted fields, are given and their numerical evaluation is demonstrated. Nonradiating modes, guided by the slab and responsible for the loss of convergence of the image functions, are considered and extracted. The theory allows, for example, an analysis of finite ground planes in microstrip antenna structures.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 May 1987
 Bibcode:
 1987STIN...8823055L
 Keywords:

 Bessel Functions;
 Dielectrics;
 Electromagnetic Fields;
 Field Theory (Algebra);
 Half Spaces;
 Magnetic Materials;
 Computer Techniques;
 Convergence;
 Magnetic Permeability;
 Microstrip Devices;
 Sommerfeld Approximation;
 Communications and Radar