Title :
A 2.4 GHz Reference-Less Receiver for 1 Mbps QPSK Demodulation
Author :
Chen, Wei-Zen ; Lu, Tai-You ; Ou, Wei-Wen ; Chou, Shun-Tien ; Yang, Song-Yu
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao-Tung Univ., Hsinchu, Taiwan
fDate :
3/1/2012 12:00:00 AM
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 RF received signal without resort to resonator based reference, such as crystal oscillator. Integrating LNA, mixer, LO carrier recovery loop, postamplifler, 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 -111 dBc/Hz at 1 MHz offset. The chip size is 1.75 × 1.55 mm2.
Keywords :
UHF amplifiers; UHF mixers; body area networks; circuit noise; demodulation; demodulators; low noise amplifiers; low-power electronics; microprocessor chips; phase noise; quadrature phase shift keying; radio receivers; wireless sensor networks; LNA; LO carrier recovery loop; QPSK demodulation; RF signal; bit rate 1 Mbit/s; body area networks; data demodulation; digital demodulator; frequency 2.4 GHz; mixer; phase noise; postamplifler; power consumption; reference-less single chip wireless receiver; Demodulation; Frequency conversion; Noise; Phase shift keying; Receivers; Voltage-controlled oscillators; Wireless communication; Body area network (BAN); QPSK; carrier recovery; demodulator; reference-less; wireless receiver;
Journal_Title :
Circuits and Systems I: Regular Papers, IEEE Transactions on
DOI :
10.1109/TCSI.2011.2165417
