Coplanar Waveguide to Slotline Transitions for Tapered Slot Antennas on Indium Phosphide

Abstract

Three different transitions for connecting the coplanar waveguide (CPW) to the slotline were designed. The performances of these transitions in back-to-back configuration were simulated and measured over 1-50 GHz. The design of these transitions were carried out with the view to monolithically integrating tapered slot antenna with coplanar waveguide circuits on InP substrate.