Propagation Analysis of Circular Surface Waveguides with a Periodically Corrugated Ground Plane

摘要

A mode-matching technique in conjunction with the Flo-quet theorem is proposed to analyze the propagation characteristics of periodic circular surface waveguides. The circular waveguides are coated outside with a multilayered dielectric and have a ground plane with periodic corrugation of arbitrary profile. Three different ground corrugation profiles are examined to demonstrate the influences of the corrugation shape, depth, and width, dielectric thickness, and relative permittivity on bandstop characteristics.