A 2.4-GHz low-power low-IF receiver in 0.18-CMOS for wireless sensor network applications

In wireless sensor network applications, low-cost and low-power operation of the wireless receiver are critical. To address this need with high performance wireless front-end, many intensive researches on CMOS radio-frequency (RF) front-end circuits have been proposed. The ultimate goal is adaptive receiver design to minimize the trade-off between high performance and low-cost, low power consumption. In this paper, an ultra low power receiver operating in 2.4GHz ISM band targeting wireless sensor network applications is presented. The proposed circuit has an integrated noise figure of 9.97 dB. The proposed receiver consumes 9.97-mW from a 1.8-V.