Abstract :
It is well known that the fringing capacitances determined for rectangular bars between parallel plates interact with each other when w/(b -t)→0. The limit of this interaction as s→0 for fixed w, b, and t is determined for symmetrical odd-mode fringing capacitances. This limit, together with an exact value known from one rectangular section and the known asymptotic value as s→ 0, permits one to estimate the values for all s. The same is true for the interaction of the symmetrical even-mode fringing capacitances, except that their interaction is readily shown to tend to zero as s→0.
