Accession Number : ADD004412

Title :   Interference Rejection Antenna System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Mack,Richard B ; Strom,John A ; Martinez,Anthony

Report Date : 27 Sep 1977

Pagination or Media Count : 8

Abstract : Interference from polarized signals is minimized by controlling the polarization of antennas having orthogonal dipole radiating elements. The antenna system utilizes microwave hybrids and phase shifters in a coaxial cable feed circuit that divides the power between horizontal and vertical dipole radiating elements. The circuit provides a variable antenna polarization that can be controlled to discriminate against interfering signals having any given polarization characteristics. Coaxial double folded baluns connect feed circuits to the dipole radiating elements and provide proper phasing and impedance transformation for efficient dipole operation. (Author)

Descriptors :   *Patents, *Antenna arrays, *Dipole antennas, *Interference, Rejection, Polarization, Power dividers, Phase shift circuits

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE