A 190.5GHz Mode-Switching VCO with 20.7% Continuous Tuning Range and Maximum Power of -2.1dBm in 0.13μm BiCMOS

📋 论文概要

该论文提出了一种工作在190.5GHz的模式切换VCO，采用0.13μm BiCMOS工艺，通过创新的模式切换技术实现了20.7%的连续调谐范围和-2.1dBm的最大输出功率，解决了毫米波/太赫兹频段VCO调谐范围受限的问题。

💡 主要创新点

• 提出了一种模式切换技术，通过在不同谐振模式间切换来扩展VCO的调谐范围，克服了变容管低品质因数和寄生电容的限制。
• 在190.5GHz频段实现了20.7%的连续调谐范围，同时保持了-2.1dBm的高输出功率，性能优于同类设计。

🏷 关键词

📄 原文摘要

Wideband mm-Wave and terahertz (THz) applications, including high data-rate communications, high-resolution radar and spectroscopy, require wideband signal sources. Nevertheless, low quality factor of varactors and lossy switches in addition to relatively large parasitic capacitors of transistors have been limiting the tuning range of voltage controlled oscillators (VCO) at these frequencies. To overcome these challenges, harmonic VCOs using high harmonic numbers and switched-capacitor banks at much lower fundamental frequencies were reported [1]. The drawback to this approach is the limited output power since the extracted harmonic number is typically high. Other tuning techniques such as phase/delay control between coupled oscillators and tuning boosting using transformer-based resonators were also reported [2-4]. However, the highest reported tuning range for VCOs above 150GHz is not more

👥 作者与机构

Rouzbeh Kananizadeh, Omeed Momeni

University of California, Davis, CA