Design of a two stage Ku band low noise amplifier for satellite applications

This paper presents the design of a cascaded two stage low noise amplifier (LNA) for Ku band applications. Hetero Junction Field Effect Transistor (HJFET) is used as an active device to realize low noise figure. Multi stage amplifiers have been designed to obtain increased gain than a single stage amplifier. In this work, two perfectly matched circuits have been cascaded to make the design simpler and provide easy troubleshooting. The designed LNA has a gain of 25.81 dB and a NF of 0.40 dB at 12 GHz. The designed high gain LNA can be used for satellite applications.