Computer-Aided Design Models for Millimeter-Wave Finlines and Suspended-Substrate Microstrip Lines (Comments)

In the above paper, Pramanick and Bhartia state in Section I that, "In this paper, closed-form equations are developed for dispersion in bilateral and unilateral finlines by using equivalent susceptances of waveguide T-junctions, and for the characteristic impedances by curve fitting to the spectral-domain results."