Non-Magnetic 60GHz SOI CMOS Circulator Based on Loss/Dispersion-Engineered Switched Bandpass Filters

📋 论文概要

该论文提出了一种基于损耗/色散工程开关带通滤波器的非磁性60GHz SOI CMOS环形器，解决了现有非互易组件架构在毫米波频段扩展性差和损耗高的问题。通过时空调制技术实现了同时同频全双工通信和FMCW雷达应用。

💡 主要创新点

• 提出损耗/色散工程开关带通滤波器架构，实现60GHz非磁性环形器，克服了传统开关调制和变容管调制在毫米波频段的高损耗问题。
• 利用SOI CMOS工艺的开关特性，通过时空调制实现非互易性，无需磁性材料，适合片上集成。

🏷 关键词

📄 原文摘要

There has been significant recent research on non-magnetic non-reciprocal components at RF and mm-waves, such as circulators and isolators, based on spatio-temporal modulation [1-3]. Circulators enable simultaneous transmit and receive (STAR) on a shared antenna for applications such as full-duplex wireless communication and FMCW radar. While there has been exciting initial progress, existing architectures do not scale well to mm-waves, whether they are based on switch-based conductivity modulation [1,2] or varactor-based permittivity modulation [3]. Loss levels increase due to losses in the switches or varactors, isolation is degraded due to reflections produced by parasitics, and power consumption is high due to the relatively high modulation frequencies required. In this work, we present a non-magnetic CMOS 60GHz circulator based on spatiotemporal conductivity modulation (STCM) across a loss/dispersion-engineered

👥 作者与机构

Aravind Nagulu, Harish Krishnaswamy

Columbia University, New York, NY