A 60GHz Antenna-Referenced Frequency-Locked Loop in 0.13µm CMOS for Wireless Sensor Networks

📋 论文概要

该论文提出了一种60GHz天线参考频率锁定环（FLL），采用0.13µm CMOS工艺，旨在消除无线传感器网络节点中的外部晶体参考，实现全集成。通过利用天线作为频率参考，降低了成本和体积，适用于长期部署的无线传感器网络。

💡 主要创新点

• 首次提出使用天线作为频率参考的FLL架构，替代传统PLL中的晶体振荡器，实现全集成。
• 在60GHz毫米波频段实现频率锁定，无需外部晶振，显著减小节点体积和成本。

🏷 关键词

📄 原文摘要

Some applications of wireless sensor networks (WSN) require long-term deployments and vanishingly-small unit volumes to make them cost effective and unobtrusive. Energy- and area-efficient circuits, as well as eliminating offchip components, are critical to meeting these objectives. A conventional WSN node can be fully integrated in CMOS except for the battery, crystal reference, and antenna. Typically, a PLL and a crystal reference are used for RF synchronization and to position the wireless signal in a desired band for FCC compliance. Crystals, however, require custom packaging that currently prohibits scaling to mm3 sizes. Moreover, an off-chip antenna increases the size of the node and raises the cost. In this paper, a fully integrated 60GHz frequency-locked loop (FLL) in 0.13µm CMOS is presented using an on-chip patch antenna as both the radiator and reference for frequency generation. The proposed technique efficiently

👥 作者与机构

Kuo-Ken Huang, David D. Wentzloff

University of Michigan, Ann Arbor, MI