mW W-Band Frequency Divider with Wide Locking Range in 90nm CMOS Technology

📋 论文概要

该论文采用90nm CMOS工艺设计了一种W波段注入锁定分频器（ILFD），通过引入注入变压器和附加LC谐振回路，在极低功耗（mW级）下实现了宽锁定范围。解决了传统ILFD锁定范围窄的问题，同时保持了高频工作能力。

💡 主要创新点

• 提出一种注入变压器结构，有效提高注入效率，实现宽锁定范围。
• 采用额外LC谐振回路扩展锁定带宽，同时保持低功耗。
• 在90nm CMOS工艺中首次实现mW级W波段分频器，验证了高频低功耗设计的可行性。

🏷 关键词

📄 原文摘要

The frequency divider (FD) [1,2] is one of the key components in very-high-frequency (VHF) PLLs. Conventionally, injection-locked frequency divider (ILFD) [3], Miller frequency divider [4], and CML static divider are widely used in various applications. Among these dividers, the ILFD has the highest operation frequency, but the locking range is limited [3]. On the other hand, the static FD covers a wide locking range, but its operation frequency is low and the power consumption is usually high [1]. Since a FD connected to a VCO operates at the highest frequency, the power dissipation and the locking range of a VHF FD should be carefully considered. In a PLL, due to the process and temperature variations, the locking range of the ILFD must be several times larger than the tuning range of the VCO. Thus, it is challenging to design a wide locking-range and low-power ILFD in the millimeter-wave

👥 作者与机构

Kun-Hung Tsai, Lan-Chou Cho, Jia-Hao Wu, Shen-Iuan Liu

National Taiwan University, Taipei, Taiwan