A new approach, the multipole theory (MT) combined with the conformal trans
formation method, is presented for the computation of the capacitances of s
lab lines with offset cylindrical bars. With this new method, the capacitan
ces of a slab line family with offset cylindrical bars are given. These dat
a nor only permit the exact design of various offset configurations of slab
lines, but also provide a known accuracy for manufacturing various coaxial
configurations of slab lines. (C) 1999 John Wiley & Sons, Inc.