An 802.11a/b/g/n/ac WLAN Transceiver for $2 \times 2$ MIMO and Simultaneous Dual-Band Operation With +29 dBm $\text{P}_{\mathrm {sat}}$ Integrated Power Amplifiers

Abstract

This paper describes the first dual-band MIMO 802.11a/b/g/n/ac WLAN RF transceiver capable of simultaneous dual-band operation. The measured receiver sensitivity of 2 GHz at 54 Mbps is -78.3 dBm and of 5 GHz for VHT80 is -66 dBm. The 802.11ac 2 x 2 MIMO 20-MHz MCS0 2 and 5 GHz receiver sensitivity levels are -96 and -95.5 dBm, respectively. Integrated power amplifiers with Psat of +29 dBm enable the 2-GHz transmitters to achieve TX output power of +23.5 dBm at 54-Mbps 64-quadratic-amplitude modulation (QAM). The 5-GHz transmitters achieve +17 dBm output for VHT80 256-QAM. This WLAN-BT connectivity system-on-chip is implemented in 40-nm CMOS technology.