Design of Gaas E-phemt low noise amplifier for WLAN application

This paper describes the design of low noise amplifier using enhancement mode technology for WLAN front-end applications. Typical LNA designed for the IEEE802.1a standard is required to operate with low noise, high gain and exhibit low noise figure. The design uses feedback, and balanced topology to enhance the performance and to achieve the design goal. The LNA is designed operate at 2.4 GHz, noise figure (NF)<; 2dB, gain>;10 dB and with S11 and S22 <;-10 dB. With the voltage supply at 5 V, the total current consumptions for the LNA is 60 Ma.