24-GHz low noise amplifier using coplanar waveguide series feedback in 130-nm CMOS

This paper presents the design and implementation of an RF CMOS low noise amplifier (LNA) in a 130-nm CMOS technology for 24-GHz industrial, scientific, and medical (ISM) applications. The use of coplanar waveguide (CPW) structures as series feedback enables simultaneous noise and power matching, which is a fundamental trade-off in LNA design. Accurate high frequency noise modeling of nanometer MOSFETs using in-house high-field drifting-dipole noise (DDN) model is also introduced for first-pass silicon design. The LNA prototype shows a gain of 19 dB and a noise figure NF of 3.8 dB measured at 24 GHz while consuming 15 mW from a 1.2-V power supply.