DocumentCode
2987656
Title
An Area and Power Efficient Cartesian Phase Shifter + Mixer Circuit Applied to WLAN System
Author
Afsahi, Ali ; Behzad, Arya ; Au, Stephen ; Roufoogaran, Rozi ; Rael, Jacob
Author_Institution
Broadcom Corp., San Diego
fYear
2007
fDate
3-5 June 2007
Firstpage
357
Lastpage
360
Abstract
A two-antenna array receiver is designed for WLAN application to build a maximum ratio combiner (MRC) system. A new signal-path Cartesian phase generation and combination technique is proposed to shift the RF signal by 22.5 phase steps. The 3 dB improvement in received SNR is achieved in comparison to single path receiver. The 0.29 mm^2 RF paths consumes 30 mW in 0.13 mum CMOS process.
Keywords
antenna arrays; mixers (circuits); phase shifters; wireless LAN; Cartesian phase shifter; WLAN system; maximum ratio combiner system; mixer circuit; power 30 mW; signal-path Cartesian phase generation; size 0.13 micron; two-antenna array receiver; Circuits; Gain; Jacobian matrices; Phase shifters; Phased arrays; Radio frequency; Receiving antennas; Robustness; Signal generators; Wireless LAN; Beamforming; CMOS; Cartesian; MRC phase shifter; phased array; wireless LAN;
fLanguage
English
Publisher
ieee
Conference_Titel
Radio Frequency Integrated Circuits (RFIC) Symposium, 2007 IEEE
Conference_Location
Honolulu, HI
ISSN
1529-2517
Print_ISBN
1-4244-0530-0
Electronic_ISBN
1529-2517
Type
conf
DOI
10.1109/RFIC.2007.380900
Filename
4266448
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