Design and implementation of CMOS low-noise amplifier for 40-GHz radio-over-fiber (RoF) system

This paper presents the design of low-noise amplifier (LNA) implemented using 0.13-μm CMOS technology. The LNA was design to support the implementation of a remote antenna unit (RAU) constructed for a 40-GHz radio-over-fiber (RoF) system. The LNA designed for the RAU transmitter achieve a small-signal gain of 14.72-dB with a noise figure of 5.56-dB at 41-GHz. The LNA designed for the RAU receiver achieve a small-signal gain of 13.38-dB with a noise figure of 5.94-dB at 38.5-GHz. Both LNAs consumed 34.7-mW power from a 1.2-V supply voltage.