Dispersion and Loss Analysis of Microstrip Line on Thin Film Dielectric Substrate for Sub-Terahertz Integrated Circuits

In this paper dispersion characteristics, dielectric and conductor loss of microstrip line on thin film cyclic-olefin copolymer dielectric substrate for integrated circuits at sub-terahertz frequency are presented. The static spectral domain analysis method is used to compute the conductor thickness dependent line capacitance of microstrip line on thin film dielectric substrate. The characteristic impedance and effective relative permittivity of microstrip line are computed using line capacitance. The frequency dependent characteristic impedance and effective relative permittivity are calculated using dispersion relation. The frequency dependent dielectric loss and conductor loss are computed from the transmission line lumped parameters