CGH40006S-LNA-KIT, Demonstrator Board has developed a low noise amplifier circuit using a CGH40006S GaN HEMT transistor as a means of demonstrating the wide bandwidth low noise performance and ruggedness of the device. This application note describes the typical performance that has been achieved and that which can be expected when evaluating the demonstrators. Details of the circuit are included for further understanding of the topology and all necessary information has been provided to aid reproduction of the amplifier