Investigation of Metal to Dielectric Waveguide Transition and the Coupling Characteristics of Dielectric Waveguides of Rectangular Cross Section

摘要

The development of an efficient low-loss transition from a conventional metal waveguide to a planar dielectric guide of rectangular cross-section is presented. Such a transition finds important applications in millimeter-wave integrated circuits. We also present an approximate but accurate analytical method based on experimental results for predicting the coupling characteristics of both symmetrical and nonsymmetrical dielectric couplers of rectangular cross-section. (Author)