A direct down-conversion receiver for low-power wireless sensor networks.

被引:0
|
作者
Cometta, Gianluca [1 ]
Touhafi, Abdellah [2 ]
Santos, David J. [1 ]
Vázquez, José Manuel [1 ]
机构
[1] Escuela Politécnica Superior, Universidad CEU-San Pablo, Madrid, Spain
[2] Erasmus Hogeschool, Brussels, Belgium
关键词
Oscillistors - Radio receivers - Wireless sensor networks - Circuit oscillations - Zigbee - Variable frequency oscillators - Low noise amplifiers - Mixers (machinery) - IEEE Standards - Low power electronics;
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摘要
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. © 2009 WASET.ORG.
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页码:123 / 132
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