A 1.8 dB noise figure low DC power MMIC LNA for C-band

Abstract

A two stage monolithic on chip matched low noise amplifier (LNA) for the frequency range of 5 to 6 GHz has been designed. A 50 /spl Omega/ noise figure of 1.8 dB and an associated gain of 16.5 dB were measured at a DC power dissipation of only 6 mW from a 1 V supply, including the bias circuitry. At 5.5 GHz the input return loss and reverse isolation are better than -10 dB and -35 dB, respectively.