Title :
A 2.4 GHz reference-less wireless receiver for 1Mbps QPSK demodulation
Author :
Chen, Wei-Zen ; Ou, Wei-Wen ; Lu, Tai-You ; Chou, Shun-Tien ; Yang, Song-Yu
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao-Tung Univ., Hsinchu, Taiwan
fDate :
May 30 2010-June 2 2010
Abstract :
A 2.4 GHz reference-less single chip wireless receiver for 1 Mbps QPSK demodulation is presented. The receiver accomplishes LO carrier recovery and data demodulation directly from the received RF signal without resort to resonator based reference, such as crystal oscillator. Integrating LNA, mixer, LO carrier recovery loop, post amplifier, and digital demodulator on a single chip, the total power consumption is 20.4 mW. The measured phase noise from a recovered carrier at 2.432 GHz is about -112 dBc/Hz at 1 MHz offset. The chip size is 1.75 × 1.55 mm2.
Keywords :
crystal oscillators; demodulation; low noise amplifiers; quadrature phase shift keying; radio receivers; wireless sensor networks; LNA; LO carrier recovery; QPSK demodulation; bit rate 1 Mbit/s; crystal oscillator; data demodulation; digital demodulator; frequency 2.4 GHz; power 20.4 mW; received RF signal; wireless receiver; Demodulation; Energy consumption; Noise measurement; Oscillators; Phase measurement; Phase noise; Power amplifiers; Quadrature phase shift keying; Radiofrequency amplifiers; Semiconductor device measurement;
Conference_Titel :
Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5308-5
Electronic_ISBN :
978-1-4244-5309-2
DOI :
10.1109/ISCAS.2010.5537460
