Title :
A novel CMOS transmitter front-end for mobile RFID reader
Author :
Gao, Tongqiang ; Wang, Jingchao ; Zhang, Chun ; Chi, Baoyong ; Wang, ZhiHua
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
Aiming at the specified protocol of EPC global Class-1 Generation-2, design considerations are expatiated to a novel structure of transmitter front-end for mobile RFID reader with 0.18 um CMOS process. The transmitter front-end consists mainly of an up-conversion mixer, a linear power amplifier (PA) and a non-linear PA. Controlled by the reader´s working status, the implemented scheme can transmit high efficient carrier or linear ASK-modulation data at separate periods. The linear PA can provide a power gain of 16.3 dB and a 1 dB output power of 19 dBm. The non-linear PA can achieve 1 dB output power of 20.6 dBm and a maximum power-added efficiency (PAE) of 44%. The output waveform and spectrum are tested to verify the feasibility of the designed transmitter.
Keywords :
CMOS integrated circuits; mobile radio; radio transmitters; radiofrequency identification; radiofrequency integrated circuits; ASK- modulation; CMOS transmitter; EPC global class-1 generation-2; gain 16.3 dB; linear power amplifier; maximum power-added efficiency; mobile RFID reader; nonlinear PA; size 0.18 mum; transmitter front-end; up-conversion mixer; CMOS process; Consumer electronics; Power amplifiers; Power generation; Protocols; Radio frequency; Radio transmitters; Radiofrequency identification; Switches; Testing; CMOS; RFID reader; power amplifier; transmitter;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium, 2009. RFIC 2009. IEEE
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-3377-3
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2009.5135500
