Accession Number : ADD018092

Title :   Dual Frequency Lightweight Deployable Antenna System.

Descriptive Note : Patent, Filed 22 May 95, patented 11 Jun 96,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Mileski, Paul M

Report Date : 11 Jun 1996

Pagination or Media Count : 9

Abstract : A lightweight deployable antenna system capable of operating at two frequencies concurrently includes a canister providing an elongated chamber and mast therewithin. A conductor extends into the mast to provide radio signals to an antenna assembly and three broadband coaxial cables, which are coiled about a spacer and are electrically connected to the antenna assembly. The antenna assembly comprises four antenna elements of resiliently deflectable wire spaced at 90 degree intervals. Each antenna element has a generally helical coil and an elongate arm with a copper tape flag disposed on the distal end thereof. Pairs of the elongate arms form dipoles which are of differing lengths so that each pair of antenna elements resonates at a frequency which differs from the frequency at which the other pair resonates. Each elongate arm is adapted to extend downwardly in the canister in a non-deployable position and at a 45 degree angle to a horizontal plane in a deployed position.

Descriptors :   *DEPLOYMENT, *ANTENNAS, *LIGHTWEIGHT, FREQUENCY, POSITION(LOCATION), COILS, WIRE, BROADBAND, HORIZONTAL ORIENTATION, ASSEMBLY, RADIO SIGNALS, HELIXES, ANTENNA COMPONENTS, COAXIAL CABLES

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE