Direct-conversion CMOS transceiver with automatic frequency control for 802.11a wireless LANs

A 11.7mm/sup 2/ 5GHz direct-conversion 0.18/spl mu/m CMOS transceiver achieves a sensitivity of -93dBm, a system NF of 4.5dB (high gain), and IIP3 of -4.8dBm (low gain). Dissipation is 150mW in RX mode and 380mW while transmitting 15dBm OFDM signal.