Double-Dielectric Fin-Line with Variable Characteristics for Millimeter Wave Integrated Circuit Applications

Abstract

A brief outline of the spectral domain method for computing the frequency dependent guide wavelength and characteristic impedance of double—dielectric fin-line (fins facing side walls), is reported in this paper. The computed results illustrate (1) the dispersion and impedance characteristics of the double-dielectric fin-line, (2) the variations of the even-and odd-mode guide wavelengths and characteristic impedances as a function of slot width, and (3) the effect of varying the spacing between the substrates on the even-and odd-mode propagation parameters. This structure should find application in millimeter-wave integrated circuits, especially in the design of filters.

Indexing terms:

• Fin-Lines
• Millimeter Wave Integrated Circuits
• Spectral Domain Method