Passive RFID Tag with Long Range and Wide Coverage Capabilities

  • Magazine Article
  • TBMG-34176
Published April 01, 2019 by Tech Briefs Media Group in United States
Language:
  • English

Researchers at NASA Johnson Space Center have developed the RFID Tag with Long Range and Wide Coverage Capabilities technology that allows a RFID tag to direct a RFID reader beam signal back in the direction of arrival. This technology requires no added power to provide telemetry for long-range readers by using multiple beams instead of one narrow beam signal. Each of the predetermined number of beams is typically associated with a unique identification number to derive bearing information. This innovation is suited for IC-based RFID tags as well as Surface Acoustics Wave (SAW) tags, which are useful for extreme environments.