题目/Title：A low-power RF front-end of passive UHF RFID transponders

作者/Author：
                        Changming Ma,Xingjun Wu,Chun Zhang,Zhihua Wang

会议/Conference：APCCAS 2008

地点/Location：Macao, China

年份/Issue Date：2008.30 Nov. - 3 Dec.

页码/pages：pp. 73 - 76

摘要/Abstract：
This paper presents in details the architecture and most of RF front-end building blocks of a fully integrated passive radio frequency identification (RFID) transponder operating at UHF 902MHz to 928MHz. A novel architecture for the transponder IC and a new low power on-off keying (OOK) demodulator are proposed in this paper. For realizing the system, a low power CMOS full-wave rectifier achieving a power conversion efficiency of 31.9% has been integrated in this transponder. Simulation results show that the global input power of front-end circuits is only about 21μ in order to drive a load of 1.8μA at the rectifier output and the power consumption of the proposed demodulator is less than 0.4μ. The transponder is fabricated in a 0.18μm mixed-mode CMOS technology and has the area of 0.70 mm2.