Waveguide to coaxial adaptor and converter for antenna for satellite broadcasting including such waveguide

摘要

A waveguide to coaxial adaptor allowing size reduction as well as providing good cross polar discrimination and input VSWR characteristic. The waveguide to coaxial adaptor employs a structure of an orthogonal transducer formed of a circular waveguide 5, a rectangular waveguide 6 integrally formed with and orthogonal to circular waveguide 5. A first probe 3 and a second probe 4 are provided to circular waveguide 5 and rectangular waveguide 6, respectively. An output terminal of first probe 3 and an output terminal of second probe 4 are formed on the same plane and connected to microstrip lines 13b and 13a, respectively. IMAGE