Accession Number : ADD011189

Title :   360-Degree Scanning Antenna with Cylindrical Array of Slotted Waveguides,

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Bodnar,D G ; Cofer,J W , Jr

Report Date : 03 Jul 1984

Pagination or Media Count : 8

Abstract : A 360 degree scanning antenna is disclosed which in includes a mechanism for scanning the main beam of a cylindrical array in azimuth and over a limited angle in elevation in which a primary feedhorn illuminates a geodesic lens which in turn illuminates the cylindrical array structure. Energy is coupled from the parallel plate structure of the feedhorn assembly into the individual waveguides of the array via dielectric wedges extending from the waveguides. Scanning in elevation is accompanied by changing the transmitter frequency and in azimuth by rotating the primary feedhorn assembly. (Author)

Descriptors :   *Patents, *Antenna arrays, *Slot antennas, *Antenna feeds, *Electronic scanners, Parallel orientation, Dielectrics, Structural properties, Transmitters, Cylindrical bodies, Elevation, Waveguides, Structures, Limitations, Lenses, Frequency, Slots, Wedges, Plates, Angles, Geodesics, Arrays

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE