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An Intermodulation Radar for Non-Linear Target and Transceiver Detection.

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This study demonstrates an intermodulation radar

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Area of Science:

  • Radar Systems Engineering
  • Non-linear Electromagnetics
  • Electronic Warfare

Background:

  • Electronic devices like amplifiers and mixers exhibit non-linear behavior.
  • These non-linearities can be detected at device access ports, even when devices are powered off.

Purpose of the Study:

  • To design and characterize a non-linear target for intermodulation radar testing.
  • To validate simulation models for intermodulation measurements.
  • To investigate the remote detection capabilities of intermodulation radar for electronic devices.

Main Methods:

  • Utilized AWR Design Environment (Cadence) and VSS software for design and simulation.
  • Developed two experimental setups for intermodulation measurements.
  • Performed measurements on connectorized devices and market-available transceivers.

Main Results:

  • Achieved excellent agreement between simulations and measurements for the designed target.
  • Confirmed that device non-linearities are detectable at access ports, irrespective of device power state.
  • Demonstrated the capability of intermodulation radar to detect switched-off transceivers.

Conclusions:

  • The designed non-linear target effectively supports intermodulation radar testing.
  • Intermodulation radar can remotely identify specific electronic devices, even when inactive.
  • Device non-linearities are a key factor in passive detection using intermodulation radar.