Mode Bifurcation and Fold Points of Complex Dispersion Curves for the Metamaterial Goubau Line

P. L. Overfelt, Klaus Halterman, Simin Feng +1

In this paper the complex dispersion curves of the four lowest-order transverse magnetic modes of a dielectric Goubau line ($\epsilon >0,\mu >0$) are compared with those of a dispersive meta…