A 606µW mm-Scale Bluetooth Low-Energy Transmitter Using Co-Designed 3.5×3.5mm2 Loop Antenna and Transformer-Boost Power Oscillator

📋 论文概要

该论文提出了一种毫米级尺寸的蓝牙低功耗（BLE）发射器，通过协同设计的3.5×3.5mm²环形天线和变压器升压电源，在606µW超低功耗下实现了BLE标准兼容的无线通信。解决了毫米级无线传感器节点功耗高、天线尺寸大以及需要专有协议的问题。

💡 主要创新点

• 首次在毫米级尺寸（3.5×3.5mm²）下实现BLE标准兼容的发射器，保证了与主流设备的互操作性。
• 采用天线与变压器升压电源协同设计，将天线和匹配网络一体化集成，显著减小面积并提升效率。
• 整体功耗仅606µW，处于同类毫米级BLE发射器的最低水平，适用于能量受限的微型传感器节点。

🏷 关键词

📄 原文摘要

Wireless communication has been a limiting factor for achieving millimeter-sized wireless sensor nodes because of the high power consumption, large antenna size and off-chip components typically required. Several mm-scale radios have been proposed [1-3]; however, all use proprietary communication protocols, which afford their designers more flexibility to address the above challenges. For interoperability and ubiquitous adoption, it is important that mm-scale radios use standard protocols, such as Bluetooth Low Energy (BLE). However, implementing a BLE-compliant radio in a mm-scale form factor poses significant additional challenges. These include the requirements for center frequency deviation (<150kHz), FSK modulation accuracy and frequency drift during the packet (<50kHz), which drive up the power consumption of typical PLL+VCO+PA BLE transmitters to >3mW [4-5]. A 0.5mW BLE transmitter was achieved by relaxing

👥 作者与机构

Yao Shi, Xing Chen, Hun-Seok Kim, David Blaauw, David Wentzloff

University of Michigan, Ann Arbor, MI