Diffraction of a skew incident electromagnetic surface wave at an impedance wedge

By making use of an earlier work [1] with due modifications, we present an exact solution, although not in explicit form, to diffraction of a skew incident electromagnetic surface wave of either E or H type at an impedance wedge. The asymptotic expression for the diffracted field in far field suggests an alternative method of measurement that allows for determining experimentally a large class of surface impedances.