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  4. Facilities for Antenna and RCS Measurements (4.5.5)

Facilities for Antenna and RCS Measurements (4.5.5)

Facilities for Antenna & RCS Measurements

Purpose:
 
The Radar and Antenna Systems Division conducts measurements of the characteristics of antenna systems and avionics systems installed on partial to full-size airframes. These measurements are conducted from outdoor ranges at the Facilities for Antenna and RCS Measurements (FARM).

Function:

The outdoor ranges are configurable for several illuminator/test items at distances up to 1500 feet away. Measurements are made on antennas and avionics systems installed on partial model airframes or full-scale aircraft configurations to determine the effects of the airframe on their characteristics.

Capabilities:

  • Evaluation of both antennas and complete avionics systems installed on or in a full-size aircraft
  • Remotely controlled illuminator towers can be positioned up to 1,500 feet away
  • Measurement of antenna radiation patterns, gain, phase, VSWR, and antenna-to¬-antenna isolation
  • Desired and jamming signal sources can be positioned for the technical evaluation of the avionics systems installed in the host airframe
  • Partial full scale mock-up measurements and communications antenna evaluations
  • Analog/ digital antenna pattern recording
  • Frequency range of 20 MHz to 20 GHz
  • Rain erosion/impact measurements
  • Computational Electromagnetics Modeling

Unique Assets List:

  • Full Scale Aircraft Antenna Ranges
  • Full Scale Aircraft Antenna Tower
  • Multi-configured antenna range
  • Anechoic Chambers (pyramidal and rectangular)
  • Integrated channel multiplexing high-speed acquisition system
  • Software for automated antenna measurements
  • 10,000 pound maximum load azimuth-over elevation positioner
  • 750 pound maximum load model tower mounted on an adjacent railroad track
  • Remotely controlled illuminator towers
  • Various RF Test Equipment
  • Model Aircraft
  • Aerodynamic steel counterbalanced rotating arm
  • Radome
  • Electromagnetic Interference Tool.