Backscatter Modulation for Wearable RFID Tags: RFID Tag Optimization for Maximum Backscatter Energy

The interest in wearable antenna design has increased significantly due to its potential applications for humans, especially in the context of RF identification (RFID) technology. RFID transponders can wirelessly transmit identification numbers or sensor data over short distances. RFID systems comprise essential components, including a reader or interrogator, an RFID tag or transponder (receive and respond), as well as a comprehensive set of coding and decoding protocols [1] , [2] .