用于无线传感器网络应用的2.4 ghz CMOS RF前端

IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 Pub Date : 2006-06-11 DOI:10.1109/RFIC.2006.1651177

M. A. Arasu, Henry Kok Fong Ong, Y. Choi, W. Yeoh

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引用次数: 19

摘要

提出了一种基于0.18 μ m CMOS技术的2.4 ghz全差分射频前端，用于无线传感器网络(WSN)应用，从1.8 v电源消耗4.8 mw。直接转换射频前端由低噪声放大器(LNA)、I/Q直接转换混频器、正交LO发生器和LO缓冲器组成。通过采用传统的源退化LNA、无源混频器(消除闪烁噪声)、RC多相滤波器(产生正交LO)和采用电流复用技术的LO缓冲器，我们实现了23 db的转换增益、8.1 db的噪声系数、-15 dbm的IIP3和优于15 db的射频前端输入回波损耗

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A 2.4-GHz CMOS RF front-end for wireless sensor network applications

A 2.4-GHz fully-differential RF front-end on 0.18-mum CMOS technology for wireless sensor network (WSN) applications consuming 4.8-mW from a 1.8-V supply is presented. The direct conversion RF-front end comprises of low-noise amplifier (LNA), I/Q direct-conversion mixers, quadrature LO generator and LO buffers. By employing conventional source degenerated LNA, passive mixer, to eliminate flicker noise, RC poly-phase filter for quadrature LO generation, and LO buffers employing current reuse technique, we achieve 23-dB conversion gain, 8.1-dB noise figure, -15-dBm IIP3 and better than 15-dB input return loss for the RF front-end

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IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, 2006

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