Accession Number : AD0164349

Title :   Helicopter UHF Antenna System for Satellite Communications.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Uhrig,Jerome W.

Report Date : 24 OCT 1972

Pagination or Media Count : 8

Abstract : The patent describes a UHF antenna comprising crossed dipoles in the shape of drooped bow ties, and encased by a polyester fiberglass laminated cone. It is positioned above and rotating with the blades of the helicopter, and orthogonally fed by a coaxial transmission line running through the hollow rotating mast. A coaxial rotary joint is placed inside the mast at the lower end to make a rotating electrical connection with the feed line.

Descriptors :   *Aircraft antennas, *Patents, Helicopters, Ultrahigh frequency, Rotating antennas

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE