A 57.9-to-68.3GHz 24.6mW Frequency Synthesizer with In-Phase Injection-Coupled QVCO in 65nm CMOS

📋 论文概要

该论文提出了一种基于同相注入耦合正交VCO（QVCO）的57.9-68.3GHz频率合成器，采用65nm CMOS工艺，功耗仅24.6mW。解决了毫米波频段正交LO信号生成困难、传统方法功耗高或难以实现的问题。

💡 主要创新点

• 提出同相注入耦合QVCO结构，在毫米波频段实现低功耗、宽调谐范围的正交信号生成。
• 通过注入锁定技术改善相位噪声和正交精度，无需额外分频器或RC滤波器。

🏷 关键词

📄 原文摘要

systems such as 60GHz band applications, the requirements of PLLs keep getting higher. In a mm-Wave direct-conversion transceiver, the quadrature LO signal generation is challenging. The conventional techniques to generate quadrature LO signals suffer from many problems. The method of using a divide-by-2 divider after a VCO with double LO frequency is popular in multi-GHz designs, but it is difficult to be realized at mm-Wave frequencies. Employing passive RC complex filters is another way to generate quadrature signals, but high power is required to compensate its loss. The conventional parallel-coupled QVCO seems to be a good choice for mm-Wave application. However, the approach suffers from poor phase noise. This work presents a fully integrated 57.9-to-68.3GHz

👥 作者与机构

Xiang Yi, Chirn Chye Boon, Hang Liu, Jia Fu Lin, Jian Cheng Ong, Wei Meng Lim

Nanyang Technological University, Singapore, Singapore Under the influence of increasing demand for high-data-rate communication