Title :
An area-efficient 5-GHz multiple receiver RFIC for MIMO WLAN applications
Author :
Khuon, Lunal ; Sodini, Charles G.
Author_Institution :
Massachusetts Inst. of Technol., Cambridge, MA
Abstract :
This paper presents area-efficient multiple receivers on a single-chip for 5-GHz MIMO wireless LAN systems. Each receiver has a low noise amplifier, Q-enhanced image reject filter, mixer, and local oscillator amplifier but shares a global local oscillator amplifier and distribution circuits for bias and filter tuning. The receivers are suitable for both spatial diversity and multiplexing. Area-efficiency results from frequency planning, circuit sharing, and application of spatial diversity. One receiver provides 14 dB gain, consumes 25 mA at 1.8 V, and occupies less than 1 mm chip area. The filter has better than 30 dB rejection at the image frequency
Keywords :
MIMO systems; Q-factor; circuit tuning; low noise amplifiers; microwave filters; microwave mixers; microwave oscillators; radio receivers; radiofrequency integrated circuits; wireless LAN; 1.8 V; 14 dB; 25 mA; 5 GHz; MIMO wireless LAN systems; Q-enhanced image reject filter; circuit sharing; distribution circuits; filter tuning; frequency planning; local oscillator amplifier; low noise amplifier; mixer; multiple receiver RFIC; radiofrequency integrated circuit; spatial diversity; spatial multiplexing; Circuit noise; Circuit optimization; Distributed amplifiers; Filters; Frequency diversity; Local oscillators; Low-noise amplifiers; MIMO; Radiofrequency integrated circuits; Wireless LAN;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9572-7
DOI :
10.1109/RFIC.2006.1651098
