5.8-GHz ISM band intermodulation radar for high-sensitivity motion-sensing applications

Ashish Mishra, Changzhi Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations


Many electronic components such as diodes and transistors exhibit certain degree of nonlinearity. In this paper, this nonlinearity is used for a radar target to generate intermodulation tones from incident waves with two fundamental frequencies, so that the radar detects only the target and rejects clutter reflections. In this paper, the intermodulation radar at 5.8 GHz ISM band and the passive tag were designed, fabricated and characterized. The motion and the intermodulation generated by the tag were measured, as compared with undesired fundamental reflections. This intermodulation-based nonlinear radar approach can overcome some drawbacks of harmonic radars. It has wide potential applications in clutter noise rejection and detection of unauthorized electronic devices.

Original languageEnglish
Title of host publicationRWS 2018 - Proceedings
Subtitle of host publication2018 IEEE Radio and Wireless Symposium
PublisherIEEE Computer Society
Number of pages3
ISBN (Electronic)9781538607091
StatePublished - Feb 28 2018
Event2018 IEEE Radio and Wireless Symposium, RWS 2018 - Anaheim, United States
Duration: Jan 14 2018Jan 17 2018

Publication series

NameIEEE Radio and Wireless Symposium, RWS
ISSN (Print)2164-2958
ISSN (Electronic)2164-2974


Conference2018 IEEE Radio and Wireless Symposium, RWS 2018
Country/TerritoryUnited States


  • Diode
  • Intermodulation
  • Nonlinear target
  • Passive target
  • Third order intermodulation


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