Patent ID: 6714165
Filing Date: 2004-03-30
Classification: H01P,H01Q

Abstract:
A dual band, higher and lower frequency range transducer with a circular coaxial waveguide feed having a longitudinal axis, a first junction for connection of a lower frequency range outer waveguide of the coaxial waveguide feed to at least two rectangular or ridge waveguides offset from the longitudinal axis of the transducer, a second junction for connection of the at least two rectangular or ridge waveguides to a further lower frequency range waveguide and a third junction for connecting an inner higher frequency range waveguide of the coaxial waveguide feed to a further higher frequency range waveguide, wherein the transducer comprises at least first and second parts joined across a first plane substantially perpendicular to the longitudinal axis and including at least a portion of the further higher frequency range waveguide extending within the first plane of the join.