  A compact bilateral single conductor surface wave transmission line (TL) is
proposed, converting the quasi-transverse electromagnetic (QTEM) mode of low
characteristic impedance slotline into the transverse magnetic (TM) mode of
single-conductor TL. The propagation constant of the proposed TL is decided by
geometric parameters of the periodic corrugated structure. Compared to
conventional transitions between coplanar waveguide (CPW) and single-conductor
TLs, such as Goubau line (G-Line) and surface plasmons TL, the proposed
structure halves the size and this feature gives important potentials to
develop integrated surface wave devices and circuits. The designed structure,
sample fabrication and experimental verification are discussed.
