A 0.0523mm2 11.4mW IEEE 802.15.4a/z/ab Compatible Aliasing-Suppressing All-Digital IR-UWB Transmitter Featuring Comb-Notched Maximally Flat Amplitude Spectral Shaping

📋 论文概要

本文提出了一种兼容IEEE 802.15.4a/z/ab的全数字IR-UWB发射机，采用反相延迟双高斯脉冲与自延迟脉冲梳状陷波技术最大化频谱利用率，同时满足全球掩模。通过斜率感知非均匀插值抑制采样混叠11dB，并利用双电平开关电容功率放大器削减旁瓣发射高达12dB，实现了小面积（0.0523mm²）和低功耗（11.4mW）。

💡 主要创新点

• 提出反相延迟双高斯脉冲与自延迟脉冲梳状陷波技术，有效提升频谱利用率至83.4%并满足全球掩模。
• 采用斜率感知非均匀插值方法，抑制采样混叠达11dB。

📄 原文摘要

Abstract This work presents an IEEE 802.15.4a/z/ab compatible IR-UWB TX using an anti-phase delayed dual-Gaussian pulse with self-delay pulse comb-notch to maximize the spectrum utilization while meeting global masks. A slope-aware non-uniform interpolation suppresses sampling aliases by 11dB. A dual-level switched-capacitor PA cuts sidelobe emission up to 12dB. The TX draws 11.4mW, reaches 83.4% spectrum utilization and near-in sidelobe (≤−35dBr at 489MHz) with %9& smaller area than prior arts. Impulse Radio Ultra-Wideband (IR-UWB) technology has rapidly gained popularity in wireless connectivity applications (e.g., IoT, smart homes, automotive, AR/VR), owing to its wide emission bandwidth (% 500MHz) [1], thereby supporting high data throughput, and its fine time resolution enabling centimeter-level localization. Recently released IEEE 802.15.4z [2] strengthens the ranging security and introduces higher mean pulse repetition

👥 作者与机构

Jihun Son, Minsu Park, Chansoo Park, Kyoungtae Lee, Jong-Hyeok Yoon, Junghyup Lee, Minyoung Song

Daegu Gyeongbuk Institute of Science and Technology, Daegu, Korea