Title :
A Fully Integrated MIMO Multiband Direct Conversion CMOS Transceiver for WLAN Applications (802.11n)
Author :
Behzad, A. ; Carter, K.A. ; Hung-Ming Chien ; Wu, Shiqian ; Meng-An Pan ; Lee, Charlotte P. ; Qiang Li ; Leete, J.C. ; Au, S. ; Kappes, M.S. ; Zhimin Zhou ; Ojo, D. ; Lijun Zhang ; Zolfaghari, A. ; Castanada, J. ; Darabi, H. ; Benson Yeung ; Rofougaran, A
Author_Institution :
Broadcom, San Diego
Abstract :
802.11n is the latest offering from the IEEE standard committee tasked with enabling and enhancing WLAN systems. This standard utilizes several techniques to offer a much larger rate versus range than the legacy WLAN systems. A single-chip multiband direct-conversion CMOS MIMO transceiver (2times2) targeted for WLAN applications is presented. This transceiver is capable of satisfying the requirements of the draft 802.1 In standard and achieves PHY rates of > 270 Mb/s. The receivers and transmitters achieve an EVM of better than -41 dB (0.9%) and -40 dB (1.0%) operating in legacy g and a modes, respectively. From a 1.8 V supply and with both cores operating, the chip draws 275 mA in RX mode and 280 mA in TX mode.
Keywords :
CMOS integrated circuits; IEEE standards; MIMO communication; transceivers; wireless LAN; CMOS transceiver; IEEE standard; RX mode; TX mode; WLAN applications; fully integrated MIMO multiband direct conversion; AWGN; Bandwidth; CMOS technology; Gold; MIMO; Rayleigh channels; Robustness; Transceivers; Transmitters; Wireless LAN; 80211n; CMOS radio; MIMO; OFDM; WLAN; direct conversion; linearization; multiband; radio calibration; transceiver;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2007.908667
