New Developments in Passive RFID Sensing – Energy Harvesting Circuits for Longer Range and Better Sensing
UHF is the latest evolution in RFID technology offering longer read range and enabling new types of sensing applications. As capable as UHF RFID is, passive sensing tags still must operate all of their circuitry by capturing RF energy transmitted from the reader. As RFID systems add more sophisticated sensors, you can run into limitations as some sensors take more energy to operate and the accuracy of certain sensors is dependent on the stability and quality of input power.