Characteristics of modified slotline configurations

Studies on the performance of modified slotline configurations (1) a dual slotline and (2) a dielectric loaded conductor-backed slotline, are presented based on a full-wave spectral-domain analysis. The spectral moment method analysis is outlined, and results on the propagation constant and characteristic impedance of example geometries are discussed. It is shown that, unlike an unloaded conductor-backed slotline, a conductor-backed slotline with a suitable dielectric loading on top or on even-mode dual-slotline can be safely used without power leakage to the parallel plate mode.<>