BAN低功率发射机设计

J. Gu, W. M. Lim, K. Yeo, M. Do, C. Boon
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引用次数: 5

摘要

针对2.4 GHz工业-科学-医疗(ISM)频段的体域网络传感器节点,设计了一种低功耗、低成本、高集成度的前端发射机。基带LPF、正交上混频器、差动驱动放大器和T/R开关采用0.18 μ m射频CMOS技术设计实现。采用基于RC网络的单放大块式LPF、改进型有源上混频器和两级驱动放大器实现大信号处理和低信号失真。发射器输出OdBm功率,增益16dB, 0-IP3功率为8.5dBm,从1.8V电源消耗6mA。
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Low Power Transmitter Design for BAN
This paper presents a low power, low cost, high integrated transmitter front-end designed for the body area network sensor nodes working at the 2.4 GHz Industry-Science- Medical (ISM) band. Baseband LPF, quadrature up-mixer, differential driver amplifier and T/R switch are designed and implemented in 0.18mum RF CMOS technology. The RC networks based single amplifying block style LPF, modified active up- mixer and two-stage driver amplifier are adopted for large signal processing and low signal distortion. The transmitter outputs OdBm power, with 16dB gain and 8.5dBm 0-IP3, consuming 6mA from 1.8V power supply.
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