Patents by Inventor Mostafa S. Afifi

Mostafa S. Afifi 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).

  • Multifrequency reflector antenna
    Patent number: 4544928
    Abstract: A multifrequency antenna includes a main reflector for signals in a low frequency band. One or more portions of the main reflector are deformed to provide one or more auxiliary reflectors for signals in one or more higher frequency bands. The feed for the low frequency band is located axially of the main reflector, while the feeds for the higher frequency bands are offset to the side of the low frequency feed. The lateral and axial offsets of the vertex of an auxiliary high frequency reflector from the vertex of the main low frequency reflector and the focal length of the auxiliary high frequency reflector are selected to minimize the degradation of the performance in the low frequency band.
    Type: Grant
    Filed: July 16, 1980
    Date of Patent: October 1, 1985
    Assignee: General Electric Company
    Inventors: Mostafa S. Afifi, Frank R. Chiappetta