The Fourier transform and mode-matching techniques wire applied in the analysis of single-layered multiconductor transmission lines with finite strip thickness. Based on a quasi-static approach, the problem is formulated to obtain simultaneous equations for the modal coefficients of the potential distributions between transmission lines, Residue calculus is applied to represent the potential distributions in convergent series form Analytical closed-form expressions for the self and mutual capacitances are developed. Numerical computations are performed to compare the validity of the proposed with other published data. (C) 2003 Wiley Periodicals. Inc.