Slots As New Circuit-Elements in Dielectric Image Line

Abstract

Slots in the ground plane of dielectric image lines are investigated as new circuit elements. This configuration has attrated attention for two applications: The dielectric image line above the slot can be designed to act as a shielding, thus reducing radiation losses if a diode is mounted above the slot e.g. in a detector- or mixer-circuit. On the other hand, similar to slots in metal waveguides, slots in the ground plane of dielectric image lines can be designed for antenna applications and even for nonradiating filter-structures.