%0 Journal Article %A Gianluca Cornetta and Abdellah Touhafi and David J. Santos and Jose Manuel Vazquez %D 2009 %J International Journal of Electronics and Communication Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 27, 2009 %T A Direct Down-conversion Receiver for Low-power Wireless Sensor Networks %U https://publications.waset.org/pdf/1464 %V 27 %X A direct downconversion receiver implemented in 0.13 μm 1P8M process is presented. The circuit is formed by a single-end LNA, an active balun for conversion into balanced mode, a quadrature double-balanced passive switch mixer and a quadrature voltage-controlled oscillator. The receiver operates in the 2.4 GHz ISM band and complies with IEEE 802.15.4 (ZigBee) specifications. The circuit exhibits a very low noise figure of only 2.27 dB and dissipates only 14.6 mW with a 1.2 V supply voltage and is hence suitable for low-power applications. %P 420 - 429