Study of multiple layer dielectric loaded elliptical ridge waveguide by edge finite element method

A new kind of multiple layer dielectric loaded elliptical ridge waveguide is presented in this paper. Variations of the cutoff wavelength and single-mode bandwidth with the ridge dimensions for different values of dielectric constant have been investigated in detail by using edge element method. The field patterns of the waveguide also have been presented. The results will be of practical significance in designing ridge waveguide components in microwave and millimeter wave engineering.