A 20 GHz Circularly Polarized, Fan Beam Slot Array Antenna.

Abstract

An EHF waveguide slot array was developed for possible use as a receive-only paging antenna for ground mobile terminals. The design, fabrication, and measured performance of this antenna are presented. The antenna generates a circularly polarized fan beam that is narrow in azimuth and broad in elevation. When mechanically rotated in azimuth, it can receive a 20-GHz satellite transmission independent of mobile terminal direction. Azimuth plane sidelobe levels, which are typically <-40 dB from the main lobe, provide for discrimination against ground and airborne jammers. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 09, 1982
Accession Number
ADA114291

Entities

People

  • Dennis C. Weikle

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Antennas
  • Artificial Satellites
  • Birds
  • Elevation
  • Fabrication
  • Frequency
  • Insertion Loss
  • Polarization
  • Polarizers
  • Radiation
  • Radiation Patterns
  • Resonant Frequency
  • Sidelobes
  • Slots
  • Vehicles
  • Waveguide Slots
  • Waveguides

Fields of Study

  • Physics

Readers

  • Phased Array Antenna Design.
  • Tactical Satellite Communications Systems Engineering.

Technology Areas

  • Space