Accession Number : AD0164355

Title :   Space Diversity Antenna System for UHF Satellite Communications for Helicopters.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Uhrig,Jerome W.

Report Date : 07 NOV 1972

Pagination or Media Count : 7

Abstract : The patent describes two pair of crossed tube radiators orthogonally fed and spaced approximately one wavelength apart with coaxial choke loading at the end of each radiator. The antenna system is for transmitting and receiving electromagnetic radiation through the plane of the rotating blades of a helicopter on two widely spaced frequencies in the UHF communication band.

Descriptors :   *Aircraft antennas, *Patents, Helicopters, Ultrahigh frequency, Space diversity communications

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE