Power feeding and digital block design of multi-standard passive RFID tag

The frequency of operation for different RFID applications changes depending on the constraints associated with the application, some of the blocks of the RFID tag can be designed, which works for multi-standard RFID frequencies such as 13.56 MHz, 915 MHz and 2.45 GHz. Basic block diagram for RFID tag for biomedical applications is considered in this work. Power feeding block and the digital block were designed and tested for multi-standard RFID frequencies mentioned above.