DocumentCode :
2641093
Title :
A <12mW, 0.7–3.2GHz receiver with resonant multi-phase LO and current reuse harmonic rejection baseband
Author :
Andrews, Caroline ; Diamente, Luke ; Johnson, Ben ; Molnar, Alyosha
Author_Institution :
Cornell Univ., Ithaca, NY, USA
fYear :
2012
fDate :
17-19 June 2012
Firstpage :
43
Lastpage :
46
Abstract :
We present a wide tuning range passive mixer-first receiver with resonant non-overlapping LO drive and noise-power optimized multi-path baseband amplifier. The receiver consumes 10-12mW (including VCOs, pulse generation and baseband) over a frequency range of 0.7-3.2GHz with a 1.3V supply. An LO generation architecture generates a 12.5% duty cycle resonant clock from standard complementary LC-tank VCOs. A capacitor sharing technique on the baseband side of the mixer doubles the RX frequency range of the 8-phase clock, achieving a NF as low as 7dB. The 1.8mW low noise baseband amplifier reuses the bias current of its four input channels while rejecting the 3rd/5th harmonics by >;34dB.
Keywords :
LC circuits; UHF amplifiers; UHF mixers; capacitors; clocks; microwave amplifiers; microwave mixers; microwave receivers; passive networks; voltage-controlled oscillators; 8-phase clock; RX frequency range; capacitor sharing technique; current reuse harmonic rejection baseband; duty cycle resonant clock; frequency 0.7 GHz to 3.2 GHz; low noise baseband amplifier; noise-power optimized multipath baseband amplifier; power 1.8 mW; power 10 mW to 12 mW; pulse generation; resonant multiphase LO generation architecture; resonant nonoverlapping LO drive; standard complementary LC-tank VCO; voltage 1.3 V; wide tuning range passive mixer-first receiver; Baseband; Harmonic analysis; Mixers; Noise; Radio frequency; Receivers; Voltage-controlled oscillators; SAW-less; harmonic mixing; harmonic rejection; mixer; multi-phase; multi-phase clock; out-of-band interference; passive mixer; receiver; software-defined radio (SDR); switching receiver; wideband receiver;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2012 IEEE
Conference_Location :
Montreal, QC
ISSN :
1529-2517
Print_ISBN :
978-1-4673-0413-9
Electronic_ISBN :
1529-2517
Type :
conf
DOI :
10.1109/RFIC.2012.6242228
Filename :
6242228
Link To Document :
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