A Dual-Frequency Feed with Electronic Tracking Capability

Abstract

A dual-frequency Q-/K-band circularly polarized feed with electronic tracking capability was developed. Four circumferentially located, externally coupled, diode controlled, resonant cavities were used at the horn throat to produce phase-center lateral movement. When used to feed a 24-in-diam. offset paraboloidial reflector, an average beam squint from boresight of 10 percent of the 3-dB beanwidth was obtained over 5-percent bandwidth.

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Document Details

Document Type
Technical Report
Publication Date
May 22, 1987
Accession Number
ADA182213

Entities

People

  • Joseph C. Lee

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Antenna Radiation Patterns
  • Antennas
  • Bandwidth
  • Boresights
  • Cavity Resonators
  • Circuit Boards
  • Frequency
  • Frequency Bands
  • K Band
  • Mass Production
  • Pin Diodes
  • Printed Circuits
  • Q Band
  • Radiation Patterns
  • Reflectors
  • Switching

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Phased Array Antenna Design.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems