Hardened antenna element cover

• US 3,896,450 A
• Filed: 09/23/1974
• Issued: 07/22/1975
• Est. Priority Date: 09/23/1974
• Status: Expired due to Term

• Current Assignee: Henry B. Gerling, John D. Reale, Nancy D. Fitzroy, Ronald L. Mann
• Original Assignee: Henry B. Gerling, John D. Reale, Nancy D. Fitzroy, Ronald L. Mann
• Inventors: Mann, Ronald L., Gerling, Henry B., Reale, John D., Fitzroy, Nancy D.
• Primary Examiner(s): Lieberman, Eli
• Application Number:
  US05/508,584
• Time in Patent Office: 302 Days
• Field of Search: 343/797,872,873
• US Class Current: 343/797
• CPC Class Codes: H01Q 1/42 Housings not intimately mechanically associated with radiating elements, e.g. radome

Abstract

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.

Claims

1. In an antenna element including a pair of dipole assemblies, cover means for protecting said element against rain and thermal radiation comprising:

a. a frusto-conical member mounted on top of said dipole assemblies; and

, b. an upper plate mounted on top of said frusto-conical member;

c. said plate and said frusto-conical member comprised of polytetrafluoroethylene filled laminated fiberglass.

2. An assembly as set forth in claim 1 wherein said dipole assemblies include a pair of dipoles each comprised of a solid and hollow post having a dipole arm extending therefrom and a cross-over wire extending from each said hollow and solid post, said cross-over wires being disposed in crossed, spaced relation.