Patent ID: 6208310
Filing Date: 2001-03-27
Classification: H01Q

Abstract:
A feed horn for transmitting a signal, said signal having both E-plane and H-plane beamwidths, said horn comprising:a throat section configured to accept the signal;a profile section connected to the throat section; andan aperture section connected to the profile section and defining an aperture of the horn, said aperture section including a plurality of chokes that are formed in an internal wall of the aperture section, said plurality of chokes including at least one choke positioned at a transition location between the profile section and the aperture section, at least one choke positioned at the aperture and a plurality of chokes positioned between the transition location and the aperture, said plurality of chokes altering the mode content of the signal to create substantially equal E-plane and H-plane beamwidths with suppressed sidelobes.