Low-power 5 GHz LNA and VCO in 90 nm RF CMOS

The potential of 90 nm CMOS technology for low-power RF front-ends is demonstrated with fully integrated low-voltage Low-Noise Amplifiers (LNA) and Voltage-Controlled Oscillators (VCO). The 5.5 GHz LNA draws 3.5 mA from a 0.6 V supply with a measured power gain of 11.2 dB, and a 3.2 dB noise figure. The 6.3 GHz VCO has a phase noise of -118 dBc/Hz at 1 MHz offset, drawing 4.9 mA from a 1.2 V supply.