| Popis: |
In this paper, it is discussed the simulation and realization of a complete RFID UHF passive Time Domain Transmission sensor tag. A low power sensor interface circuit is described and integrated with a passive tag. Any standard RFID UHF reader can access the sensor data by reading the tag memory. The sensor was tested under saline water solutions, where 10 distinct dielectric constants were evaluated. It was found a 5.72 RMSE from the measurements obtained by dielectric probe and VNA set-up, operating at 301 MHz. |
