A Highly Integrated Low-Power 2.4GHz Transceiver Using a Direct-Conversion Diversity Receiver in 0.18µm CMOS for IEEE802.15.4 WPAN

📋 论文概要

该论文提出了一款高度集成的低功耗2.4GHz射频收发器，采用直接转换分集接收机架构，在0.18μm CMOS工艺上实现，适用于IEEE 802.15.4无线传感器网络标准。该收发器集成了无线控制器和睡眠定时器，能够自主执行信标检测和网络定时同步等MAC层功能，从而显著降低系统功耗。

💡 主要创新点

• 采用直接转换分集接收机架构，在实现低功耗的同时提高接收灵敏度。
• 集成无线控制器和睡眠定时器，支持自主MAC层功能（如信标检测和网络同步），减少外部处理器干预。
• 通过硬件加速实现网络定时同步，进一步降低系统整体功耗。

🏷 关键词

📄 原文摘要

P. Crowley3, C. Billon1, K. Khan1, P. Quinlan1 Analog Devices, Cork, Ireland, Analog Devices, Valencia, Spain, 3 Analog Devices, Limerick, Ireland 1 2 The IC presented in this paper is a highly integrated low-power RF transceiver for wireless sensor networks (WSN) compliant with the IEEE 802.15.4 2.4GHz WPAN standard. It contains a radio controller with sleep timer and can perform higher-level MAC functions such as beacon detection and network timing synchronisation autonomously, thereby enabling significant power savings in the overall system. The primary design goal for the receive path is to achieve excellent channel selectivity and dynamic range combined with good sensitivity at very low power consumption, all of which are important parameters for the reliable operation of WSN in the harsh 2.4GHz ISM band. The receiver uses a direct-conversion architecture and offers up to 20dB improved

👥 作者与机构

G. Retz1, H. Shanan1, K. Mulvaney1, S. O’Mahony1, M. Chanca2,