An 18.5-to-23.6GHz Quad-Core Class-F23 Oscillator Without 2nd/3rd Harmonic Tuning Achieving 193dBc/Hz Peak FoM and 140-to-250kHz 1/f3 PN Corner in 65nm CMOS

📋 论文概要

本文提出了一种18.5至23.6GHz的四核Class-F23振荡器，无需二次/三次谐波调谐，通过优化谐振腔设计解决了毫米波频段电感耦合导致的品质因数下降问题，实现了193dBc/Hz的峰值FoM和140t的调谐范围。

💡 主要创新点

• 提出四核Class-F23架构，无需额外的二次/三次谐波调谐电路，简化设计并降低功耗。
• 通过优化电感布局和耦合抑制技术，在毫米波频段保持高Q值谐振腔，显著提升相位噪声性能。

🏷 关键词

📄 原文摘要

Southern University of Science and Technology, Shenzhen, China 1 2 *Equally Credited Authors (ECAs) Rapid development of wireless communication technology makes low phase-noise (PN) millimeter-wave (mm-wave) oscillators increasingly critical. However, the increasing operation frequency shrinks the physical dimensions of inductors, leading to a destructive coupling among the peripheral edges of the inductors. This inevitably degrades the quality factor (Q-factor) of the resonant tank, thereby deteriorating the PN (Fig. 34.5.1 (top left))

👥 作者与机构

Hanzhang Cao*1, Sichen Gao*1, Jin Jin1, Xiaolong Liu2, Wen Wu1, Tongde Huang1

Nanjing University of Science and Technology, Nanjing, China