AN L-BAND SHIP ANTENNA WITH VARIABLE CONICAL RADIATION CHARACTERISTIC FOR MARITIME SATELLITE COMMUNICATION SYSTEMS

The basic concept, development, and construction of an L-band ship's antenna (1,535 to 1,645 MHz) with stabilized platform for use in a maritime satellite communication system is described in detail. The antenna pattern of the medium gain antenna (minimum gain 7 dB) is a conical beam. The radiation at all azimuth angles is omnidirectional. The elevation angle of the conical beam is infinitely variable. The polarization of the radiation is right hand circular in the direction of the antenna axis and becomes increasingly elliptical for decreasing elevation angles. Due to its simple control system, low weight, and costs, this antenna system is particularly suitable for small ships. (Author)

• Supplemental Notes:
  • Tran-Transl. Into English of 'Eine L-Band-Schiffsantenne MIT Variabler Konischer Strahlungscharakteristik fuer Maritime Satelliten-Nachrichtensysteme', Dfvlr, Oberpfaffenhofen, West Ger. Report Dlr-FB-75-66, 16 Oct. 1975. Misc-Original German Report Available from Dfvlr, Cologne Dm 32,10.
• Corporate Authors:

  European Space Agency

  8-10 rue Mario Nikis
  75738 Paris Cedex 15,   France 
• Authors:
  • Forster, H
  • Mattes, H
  • Schrott, A
• Publication Date: 1976-4

Media Info

• Pagination: 78 p.

Subject/Index Terms

• TRT Terms: Antennas; Communications satellites; Cones; Design; Marine terminals; Navigational satellites; Omnidirectional antennas; Phased arrays; Radiation patterns; Satellite communication; Ultrahigh frequency
• Uncontrolled Terms: Antenna radiation patterns
• Old TRIS Terms: Antenna design; Antenna systems; Conics; Ship terminals; Ultrahigh frequencies
• Subject Areas: Design; Marine Transportation; Operations and Traffic Management;

Filing Info

• Accession Number: 00147019
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: ESA-TT-287
• Files: TRIS
• Created Date: Feb 16 1977 12:00AM