Accession Number : ADD002204

Title :   Hardened Antenna Element Cover.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C

Personal Author(s) : Fitzroy,Nancy D ; Mann,Ronald L ; Gerling,Henry B ; Reale,John D

Report Date : 22 Jul 1975

Pagination or Media Count : 3

Abstract : The patent describes a hardened cover to provide weather protection (rain and thermal radiation) to an antenna element of a radar system. The antenna element includes a pair of dipoles in normal relation. Each dipole assembly includes a solid and hollow post, a cross-over wire extends between the posts to connect to a dipole arm carried on each post. The hardened cover is comprised of polytetrafluoroethylene (Teflon) filled laminated fiberglass which can be classed as an ablative material.

Descriptors :   *Protective coverings, *Patents, *Radar antennas, Radomes, Fiber reinforced composites, Glass reinforced plastics, Tetrafluoroethylene resins, Laminates, Thermal radiation, Ablative materials, Rain, Radiation hardening

Subject Categories : Electrical and Electronic Equipment
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE