Distance radar for helicopters

During difficult landing maneuvers in snow (white-out effect) or in very dusty regions (brown-out effect), millimeter wave sensors help helicopter pilots to land safely. The sensor technology uses the advantageous properties of the millimeter-wave frequency range (f >30 GHz) in the electromagnetic spectrum: Millimeter waves penetrate dielectric materials such as dust, snow or fog, so that surface and upper distance as well as drift velocity can be reliably determined despite restricted sight.

Millimeter wave sensor applications help to handle brown-out during landing.
© Bundeswehr
Millimeter wave sensor applications help to handle brown-out during landing.

Specifications

  • 94 GHz frequency modulated continuous wave radar
  • Proven metamorphic HEMT technology
  • Single Rx/Tx antenna
  • 6 GHz tuning bandwidth
  • ƒƒMax. 10 mW output power
  • ƒƒLow power consumption: <500 mW
  • Measurements from a distance of up to 200 meters
  • Solutions on a single chip: integrated VCO, LNA, MPA, coupler and I/Q mixer
  • Low cost packaging technology