mW 7GHz and 1.6mW 60GHz Frequency Dividers with Locking-Range Enhancement in 0.13µm CMOS

📋 论文概要

该论文提出了两种基于LC的注入锁定分频器（ILFD），分别在7GHz和60GHz频率下工作，功耗仅为1.2mW和1.6mW，并采用新技术增强锁定范围，解决了高Q谐振器导致锁定范围窄的问题。

💡 主要创新点

• 提出了一种锁定范围增强技术，通过优化注入方式或电路结构，有效拓宽了传统LC-ILFD的窄锁定范围。
• 实现了两个不同频段（7GHz和60GHz）的低功耗分频器设计，展示了技术在不同频率下的可扩展性和低功耗优势。

🏷 关键词

📄 原文摘要

Frequency dividers are key components for frequency synthesis in wireless and wireline communication systems. Among different types of frequency dividers, LC-based injection-locked frequency dividers (ILFDs) feature highfrequency operation at low power consumption, but their locking range is quite narrow due to the high-Q nature of the resonator. Recently, design techniques to enhance the locking range of ILFDs have been reported. Injection into two coupled LC oscillators [1] and sandwiched injection into two identical LC oscillators [2] are proposed, but these techniques are suitable for dividers with quadrature outputs. Inductive-peaking and transconductance enhancement techniques [3, 5] are also used but they require extra inductors and thus larger chip area. In this paper, a simple but effective technique is presented to improve the locking range of ILFDs without extra inductive components while consuming low power.

👥 作者与机构

Sujiang Rong, Alan W.L. Ng, Howard C. Luong

Hong Kong University of Science and Technology, Hong Kong, China