WAVEGUIDE PHASED ARRAY ANTENNA APPARATUS

摘要

A phase shifter for controlling a phase of a propagating wave from a distributing waveguide to an array of radiating waveguides is disclosed. The phase shifter includes a distributed-constant line coupling the distributing waveguide to the radiating waveguide and a plurality of distributed-constant circuits each providing a different phase-shift characteristic. A micro machine switch selectively connects the distributed-constant circuits to the distributed-constant line depending on a control signal received from outside.