A 0.42nW 434MHz -79.1dBm Wake-Up Receiver with a Time-Domain Integrator

📋 论文概要

该论文提出了一种工作于434MHz的唤醒接收器，采用时域积分器替代传统高Q前端电感，实现了0.42nW的超低功耗和-79.1dBm的灵敏度，解决了高频下小天线尺寸与高灵敏度之间的矛盾。

💡 主要创新点

• 首次在434MHz频段实现低于1nW功耗的唤醒接收器，通过时域积分器避免了高Q电感对工作频率的限制。
• 采用时间域信号处理技术，在极低功耗下达到-79.1dBm的灵敏度，适用于小尺寸天线系统。

🏷 关键词

📄 原文摘要

PicoNodes have applications in warehouse inventory, smart homes, or integrated patient monitoring and require ultra-low power consumption to eliminate battery replacement or enable batteryless systems. A small form factor is key for ubiquitous deployment. Recently, wake-up receivers [1,2] have traded off latency for improved sensitivity for non-latency-critical applications. However, the improved sensitivity requires a high-Q front-end inductor that limits operation to below 200MHz; this stands in the way of a small antenna form factor. Higherfrequency operation makes a smaller antenna possible, but entails lower-Q inductors and higher package parasitics. A receiver with a gate-biased self-mixer

👥 作者与机构

Vivek Mangal, Peter R. Kinget

Columbia University, New York, NY