There is a similar simple approximation for a coplanar waveguide short-circuit, also given in . The short circuit is inductive in nature.
The equivalent length extension associated with the fringing fields is
Equation (12.29) is valid when the metalization thickness does not become too large ().
The short end inductance can be written in terms of the inductance per unit length and the wave resistance.
According to W.J.Getsinger  the CPW short-circuit inductance per unit length can also be modeled by
based on his duality  theory.