Low Cost Multibeam Phased Array Antenna for Communication with

Abstract

The U.S. Navy uses both military and commercial satellites for communication purposes. In the existing shipboard communications system, a separate antenna, most likely a reflector antenna, is used to communicate with each satellite. In the future, it is expected that these reflector antennas will be replaced by multi-function, low RCS (radar cross section) phased array antennas. In this report, we have designed (based on an existing method suggested by Amitay and Gans) a unique concept in which a single planar array (on a mobile earth station) can be used to communicate simultaneously with several geostationary satellites by generating multiple independent beams. These beams will need to be scanned in only one plane, thus reducing the number of phase shifters required for each beam. In the orthogonal plane, one or two hard-wired squints will be used to fix the beam position. This method will help to reduce the cost and complexity of phased array antennas on mobile earth stations.

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Document Details

Document Type
Technical Report
Publication Date
Sep 27, 2010
Accession Number
ADA530515

Entities

People

  • Dharmesh P. Patel
  • Gregory Tavik
  • J.b. Rao
  • Mark G. Parent
  • Rashmi Mital

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Antenna Arrays
  • Antennas
  • Arrays
  • Artificial Satellites
  • Communication Systems
  • Coordinate Systems
  • Geometry
  • Geosynchronous Orbits
  • Geosynchronous Satellites
  • Grids
  • Latitude
  • Longitude
  • Military Research
  • Orbits
  • Phased Arrays
  • Satellite Communications
  • Transmission Lines

Fields of Study

  • Physics

Readers

  • Phased Array Antenna Design.
  • Unmanned Aerial System (UAS) Autonomous Capabilities and Mission Reconnaissance.

Technology Areas

  • Space
  • Space - Satellites