A 1 V, 2.4 GHz low power CMOS common source LNA for WSN applications

This paper focuses on the modified design, and implementations of single ended and differential mode low noise amplifiers targeted for wireless sensor network applications. Key issues in wireless sensor network receivers are discussed and the existing circuit level implementations of low noise amplifiers are compared. Emphasis was placed on observing device reliability constraints at low power to maximize the life time of the wireless sensor nodes. The proposed single ended and the differential LNA can operate at 2.4 GHz and dissipates a power of 22.622.6 and 30.3μW, respectively, from a 1 V supply. The noise performance at input, output and the frequency response is presented.