Title:
PARABOLIC ANTENNA AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JPH01144705
Kind Code:
A
Abstract:
PURPOSE:To obtain the parabolic antenna of high quality and satisfactory reliability by equipping an antenna main body in a cup shape, a wave reflecting layer to be composed of conductive metal, which is fit on the concave side of the antenna main body, and a weatherproofing film layer to be fitted on the wave reflecting layer. CONSTITUTION:For a parabolic antenna 10, a wave reflecting layer 3 to be composed of the conductive metal is fitted to the concave side of an antenna main body 1 to be almost the cup shape and a weatherproofing film layer 4 is fitted on this wave reflecting layer 3. It is preferable to use an aluminum foil whose width is 3-75mum, for example, and to provide a thermoplastic resin layer, which is composed of any one of polyvinyl chloride, polyethylene and polypropylene, as needed. It is preferable to compose the weatherproofing film layer 4 of polyvinylidene fluoride(PVF), etc. Thus, the parabolic antenna of the high quality and satisfactory reliability can be obtained.
Inventors:
YOKOKOJI SHOJI
SAJIKI TAKASHI
SAJIKI TAKASHI
Application Number:
JP30271587A
Publication Date:
June 07, 1989
Filing Date:
November 30, 1987
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
H01Q15/16; H01Q15/14; (IPC1-7): H01Q15/14; H01Q15/16
Attorney, Agent or Firm:
Takehiko Suzue (3 outside)