论文信息 - A fully integrated 2×2 b/g and 1×2 a-band MIMO WLAN SoC in 45nm CMOS for multi-radio IC

A fully integrated 2×2 b/g and 1×2 a-band MIMO WLAN SoC in 45nm CMOS for multi-radio IC

A significant increase in Smartphones and tablets with embedded Wi-Fi demands a low-cost system solution. In this paper the RF core of an 802.11n 2×2 b/g band, 2×1 a-band MIMO WLAN SoC with die area of 3.83mm2 in 45nm CMOS is described. As shown in Fig. 19.1.1 the SoC has integrated Power Amplifier (PA) for both bands and T/R switch in b/g band, eliminating the need for an expensive external Front-End Module. The LO is synthesized by a two-step DLL-PLL architecture to meet the stringent phase-noise requirements.

[1] Mark Ruberto,et al. Dual-band CMOS transceiver with highly integrated front-end for 450Mb/s 802.11n systems , 2010, 2010 IEEE Radio Frequency Integrated Circuits Symposium.

[2] Daibashish Gangopadhyay,et al. A 2.4-GHz Extended-Range Type-I $\Sigma\Delta$ Fractional-$N$ Synthesizer With 1.8-MHz Loop Bandwidth and $-$110-dBc/Hz Phase Noise , 2011, IEEE Transactions on Circuits and Systems II: Express Briefs.

[3] Babak Vakili-Amini,et al. A 65nm dual-band 3-stream 802.11n MIMO WLAN SoC , 2011, 2011 IEEE International Solid-State Circuits Conference.

[4] Lawrence E. Larson,et al. Fully integrated dual-band power amplifiers with on-chip baluns in 65nm CMOS for an 802.11n MIMO WLAN SoC , 2009, 2009 IEEE Radio Frequency Integrated Circuits Symposium.

[5] Hooman Darabi,et al. A multistandard, multiband SoC with integrated BT, FM, WLAN radios and integrated power amplifier , 2010, 2010 IEEE International Solid-State Circuits Conference - (ISSCC).

[6] Ali Hajimiri,et al. Distributed active transformer-a new power-combining and impedance-transformation technique , 2002 .

[7] Xudong Jiang,et al. A 4-in-1 (WiFi/BT/FM/GPS) connectivity SoC with enhanced co-existence performance in 65nm CMOS , 2012, 2012 IEEE International Solid-State Circuits Conference.