Patents by Inventor Rudolf Wohlleben

Rudolf Wohlleben has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hybrid mode feed horn having funnel-shaped horn flange with grooved conical inner surface
    Patent number: 4873534
    Abstract: A hybrid-mode feed horn for feeding a reflector from the primary focus has a flange provided with grooves in an inner funnel-shaped surface thereof. The horn flange is formed to enable illumination of deep reflectors with a high aperture efficiency, low spill-over and high sidelobe suppression. The half opening angle .theta.o of the horn flange (7) is specified in the region 70.degree.<.theta.o<80.degree.. An offset of the feeding waveguide (3) in relation to the horn throat plane (21) is adjustable.
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: October 10, 1989
    Inventors: Rudolf Wohlleben, Johann Mutschlechner