A Single-Chip CMOS UHF RFID Reader Transceiver for Chinese Mobile Applications

作者：Ye Le^*; Liao Huailin; Song Fei; Chen Jiang; Li Chen; Zhao Jinshu; Liu Ruiqiang; Wang Chuan; Shi Congyin; Liu Junhua; Huang Ru; Wang Yangyuan

来源：IEEE Journal of Solid-State Circuits, 2010, 45(7): 1316-1329.

DOI：10.1109/JSSC.2010.2049459

• Chinese RFID reader
• CMOS transceiver
• DCOC
• mobile RFID reader
• reader
• RFID
• self-jammer
• transceiver
• transmitter leakage
• UHF RFID reader

UHF RFID reader transceiver for Chinese local standard (840-845 MHz and 920-925 MHz), in concord with the protocols of EPC Class-1 Gen-2 and ISO/IEC 18000-6C, is presented. A highly linear RF front-end with low flicker noise, an on-chip self-jammer cancellation (SC) circuit with fast time-varying cut-off frequency and a DC-offset cancellation (DCOC) circuit are proposed to deal with the large self-jammer in the receiver. In the presence of 22 dBm PA output power, the receiver achieves a sensitivity of -79 dBm including the 15 dB loss of the directional coupler. A CMOS class-AB PA is integrated in the transmitter, with 22 dBm output power and 35% PAE. The spectrum mask achieves ACPR(1) of -45 dBc and ACPR(2) of -60 dBc. A sigma-delta fractional-N PLL with a single LC VCO is also implemented for good phase noise (-126 dBc/Hz @ 1 MHz offset) and high frequency resolution within 1 kHz. This single-chip is fabricated in a 0.18 mu m standard CMOS process. It occupies a silicon area of 13.5 mm(2) and dissipates 203 mW from a 1.8 V supply voltage when transmitting 7.5 dBm output power.

• 出版日期2010-7
• 单位北京大学