A 2.7 V 900 MHz CMOS LNA and mixer

The demand for portable wireless communications systems increases the focus on radio frequency (RF) IC implementations. At the same time, fine-line CMOS process technologies offer potential for RF applications. This 2.7 V, 900 MHz, CMOS low-noise amplifier (LNA) and mixer employs a current reuse technique that increases amplifier transconductance for the LNA and mixer without increasing power dissipation, compared to standard topologies. The increased transconductance plays a key role in reducing noise figure (NF) and increasing gain.