Even and Odd Modes on a Conductor-Backed Slotline

An analysis of the conductor-backed slotline is presented in this paper. The dispersion characteristics of modes with both even and odd symmetry are presented together with their electric field distribution on the transversal plane. New, unexpected behaviour of the dispersion characteristics is observed. The conductor-backed slotline can unattenuatedly guide even and odd dominant modes which are not bound modes. It turned out that this line is not suitable for power transmission. It may have a possible application in the design of an entirely uniplanar leaky wave antenna.