A 900MHz UHF RFID Reader Transceiver in 0.18μm CMOS Technology
This paper presents a UHF band (840MHz～925MHz) RFID reader transceiver design for the protocols of EPC Class-1 Gen-2 and ISO/IEC 18000-6C. The architecture and modules for the proposed transceiver are described and implemented in a standard 0.18μm CMOS process. To suppress the leakage signal from transmitter to receiver,directional coupler and leakage cancellation circuit are introduced in the transceiver. A mixer with common-gate capacitor-cross-coupled input stage and vertical NPN switching stage is introduced to satisfy wideband matching and reduce 1/f noise corner. The transceiver,with an on-chip Power-amplifier (PA) driver to drive off-chip PA,supports DSB-ASK,SSB-ASK and PR-ASK modulation schemes. A sigma-delta PLL is also implemented for 250kHz channel hopping. Measurement results are given. Mixer achieves -8dBm PldB and 6.25dB noise figure,phase noise of PLL is -127dBc/Hz @ 1MHz offset and settling time of channel hopping is within 30u.s. Settling time of killing leakage is less than 15μs. The sensitivity of receiver can be -81dBm @ 40 kHz link frequency (LF). The total silicon area of the transceiver is 13mm2,and draws 75mA for 1.8V supply voltage.
Le Ye Huailin Liao Fei Song Jiang Chen Huilin Xiao Ruiqiang Liu Junhua Liu Xinan Wang Yangyuan Wang
Key Laboratory of Microelectronic Devices and Circuits,Institute of Microelectronics,Peking University,100871
国际会议
9th International Conference on Solid-State and Integrated-Circuit Technology(第9届固态和集成电路国际会议)
北京
英文
1569-1572
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）