Crosstalk between Two Coplanar Waveguides

摘要

Mapping of two coplanar waveguides into parallel plate transmission lines is performed using elliptical integral transformations. This mapping provides more physical insight in estimation of capacitive crosstalk between two coplanar waveguides. Predictions of crosstalk levels agree reasonably well with the experimental measurements of the up-scaled coplanar waveguides with various separations. Scaling of coplanar waveguides does not change the characteristic impedance and the coupling capacitance per unit length. However, the total coupling capacitance varies linearly with scaling. Reprints. (rh)