Accession Number : ADD010505

Title :   Small Angular Beamwidth Antenna System.

Descriptive Note : Patent Application,


Personal Author(s) : Gutleber,Frank S

Report Date : 26 Aug 1983

Pagination or Media Count : 20

Abstract : This invention relates generally to communications systems and more particularly to radio frequency communications trunk transmission systems in which antenna pattern cancellation arrangements are utilized to automatically eliminate or reduce external interference at the receiving end of the transmission communications link. As is well known and understood, one of the major concerns of designers of antenna system trunk transmission communications links is the elimination or reduction of external interference sources such as jamming and self-interference in a dense communications environment. Also as is well known, the beamwidth of the antenna is constrained by the allowable physical size of its aperture and most arrangements which attempt to resolve the problems of external interference do so in a relatively complex manner, often utilizing very large directional antennas or with antennas having hundreds or more elements to reduce the received beamwidth.

Descriptors :   *Patent applications, *Directional antennas, *Beam forming, Suppressors, Antijamming, Radiofrequency interference, Attenuators

Subject Categories : Electrical and Electronic Equipment
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE