ANTENNA FEEDER CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide an easy-to-manufacture antenna feeder circuit having a wide operating band. SOLUTION: The antenna feeder circuit is constituted of a waveguide type line having a stack structure of wide wall faces US of waveguides 10A and 10B. One or more thin gaps SL having a length substantially equal to the width of the bonding face of the waveguides are formed in a direction perpendicular to the longitudinal direction of the waveguide. A passage from one waveguide to the other waveguide and a passage from the other waveguide to one waveguide are formed by these thin gaps and these passages constitute a phase shifter or a hybrid circuit. COPYRIGHT: (C)2004,JPO&NCIPI