DocumentCode :
1050448
Title :
A 0.18- 
CMOS Selective Receiver Front-End for UWB Applications
CMOS Selective Receiver Front-End for UWB ApplicationsAuthor :
Cusmai, Giuseppe ; Brandolini, Massimo ; Rossi, Paolo ; Svelto, Francesco
Author_Institution :
Dipt. di Elettronica, Pavia Univ.
Volume :
41
Issue :
8
fYear :
2006
Firstpage :
1764
Lastpage :
1771
Abstract :
This paper addresses the problem of 5-6-GHz WLAN interferer rejection in a direct-conversion receiver front-end for multi-band orthogonal frequency division multiplexing (OFDM) ultra-wideband (UWB) applications. The IC, realized in a 0.18-mum CMOS technology, comprises a single-ended voltage-voltage feedback low-noise amplifier (LNA) and a quadrature mixer. The LNA employs a double-peak single-notch network in the output load, amplifying UWB groups #1 and #3, while rejecting WLAN interferes in the 5-6-GHz frequency range. The mixer, based on a merged quadrature topology, also realizes a second-order low-pass filtering. Fabricated dies have been bonded on PCB for characterization. The front-end, drawing 10 mA from 1.8 V, achieves a 1-dB gain desensitization with a -6.5-dBm interferer power at 5.5 GHz. Other measured performances are 5.2-dB and 7.7-dB minimum and maximum noise figure (NF), -3.5-dBm minimum IIP3 and +34.5-dBm minimum in-band IIP2 and +21-dBm out-of-band IIP2
Keywords :
CMOS integrated circuits; MMIC; OFDM modulation; feedback amplifiers; low noise amplifiers; low-pass filters; microwave receivers; mixers (circuits); ultra wideband communication; wireless LAN; 0.18 micron; 1 dB; 1.8 V; 10 mA; 5 to 6 GHz; CMOS selective receiver front-end; CMOS technology; LNA; OFDM; PCB; UWB applications; WLAN interferer rejection; direct-conversion receiver front-end; low-noise amplifier; multi-band orthogonal frequency division multiplexing; noise figure; quadrature mixer; quadrature topology; second-order low-pass filtering; single-ended voltage-voltage feedback amplifier; single-notch network; ultra-wideband applications; CMOS integrated circuits; CMOS technology; Feedback; Low-noise amplifiers; Network topology; Noise measurement; OFDM; Ultra wideband technology; Voltage; Wireless LAN; Blocking; CMOS; RFIC; desensitization; front-end; low power; low-noise amplifier (LNA); mixer; multi-resonance; receiver; ultra-wideband (UWB); wireless LAN;
fLanguage :
English
Journal_Title :
Solid-State Circuits, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9200
Type :
jour
DOI :
10.1109/JSSC.2006.877256
Filename :
1661753
Link To Document :
