A phase shifter using waffle-iron ridge guides and its application to a beam steering antenna

Abstract

A mechanical linear sliding phase shifter using waffle-iron ridge guides (WRG) and its application to a beam steering antenna are shown. The structure of the new phase shifter is simpler than we have presented previously in that the number of metal layers has been reduced. Another advantage of the new phase shifter is that with it simple beam steering antennas can be realized. This paper explains the principle and the characteristics of the phase shifter and gives an example of a beam steering antenna.