A CAD-oriented model for the ohmic losses of multiconductor coplanar lines in hybrid and monolithic MIC's

The paper presents CAD-oriented closed-form expres­sions for the high-frequency resistance matrix of gen­eral multiconductor coplanar lines for analog or digital GaAs IC's, Together with the quasi-TEM character­ization presented in [1] the present results enable the evaluation of the modal impedances and attenuations of the multiconductor line. The approach is based on an exact conformal mapping technique, and allows for for coupled lines and multiconductor buses of arbitrary ge­ometry, i.e. having arbitrary strip widths and spacings. Results are presented to demonstrate the accuracy and efficiency of the approach