A Triple-Band Passive RFID Tag

This paper presents a broadband analog interface in 0.12 mum CMOS without a Schottky Diode process-option, which powers the chip from 1MHz to 2.45GHz and communicates with EPC UHF and HF. To profit from the application benifit of both13.5613MHz HF RFID systems used in identification and 860 to 960MHz UHF RFID systems used in supply chain applications, two frequency selective tags or one broadband chip with one antenna are necessary.