International Conference on Mathematical Methods in Electromagnetic Theory, Odessa, Ukraine, 29 June - 02 July 2008, pp.85-86
A Wiener-Hopf analysis is provided for the propagation of the dominant TEM mode in a coaxial waveguide with a dielectric filled groove on the outer conductor. Some graphical results showing the effects of the groove depth and the dielectric permittivity of the material filling the groove are presented.