Radial line slot antenna for satellite communication, has feed structure comprising circular and coaxial waveguides which are coupled to radial waveguide by slots for exciting antenna along orthogonal directions

摘要

A feed structure placed at rear of the antenna, consists of a circular waveguide (6) arranged at center of radial waveguide and coaxial waveguide. The coaxial waveguide which is excited by a ring shaped waveguide and the circular waveguide, are coupled to the radial waveguide by respective radial slots (11,12) and circular slots (7,8) for exciting antenna along orthogonal polarization directions.