An integral equation analysis of an infinite array of rectangular dielectric waveguides
Abstract
An integralequation analysis is applied to study the propagation characteristics of an infinite array of dielectric waveguides. The geometry under study is assumed to be rectangular. To find the Green function of the structure, the Floquet theorem is applied, so that the mutual coupling between dielectric waveguide elements is effectively included in the analysis. The effect of the coupling on the propagation characteristics of a dielectric waveguide is studied by varying the size of the Floquet cell. The validity of this analysis to simulate the case of an open dielectric waveguide is confirmed by a comparison with previous results, this in spite of the fact that radiation and leaky wave modes are not accounted for. The complex modes due to the periodicity of the structure are found, and their properties are described. The analysis presented, with minor modification, can deal with the problems of dielectric image lines or dielectricloaded metallic waveguides.
 Publication:

IEEE Transactions on Microwave Theory Techniques
 Pub Date:
 July 1990
 DOI:
 10.1109/22.55779
 Bibcode:
 1990ITMTT..38..873Y
 Keywords:

 Dielectrics;
 Integral Equations;
 Propagation Modes;
 Rectangular Waveguides;
 Arrays;
 Eigenvalues;
 Floquet Theorem;
 Electronics and Electrical Engineering