A Broadband and Deep-TX Self-Interference Cancellation Technique for Full-Duplex and Frequency-Domain-Duplex Transceiver Applications

📋 论文概要

本文提出一种用于全双工和频域双工收发器的宽带深度发送自干扰消除技术。该技术旨在解决宽带信号下高功率功率放大器带来的自干扰抑制难题，提升频谱效率。

💡 主要创新点

• 提出一种宽带深度TX自干扰消除架构，支持全双工和频域双工模式。
• 实现高功率PA条件下的大动态范围自干扰抑制，适用于长距离通信。

🏷 关键词

📄 原文摘要

University of Washington, Seattle, WA Full-Duplex (FD) radios, capable of simultaneously transmitting and receiving on the same frequency, have evolved as one method to address future demand for higher data-rates. Although recent highly integrated full-duplex radios [1-4] show promise towards improving spectral efficiency by >1.9× [5], mitigating transmitter (TX) self-interference (SI) for broad-bandwidth signals remains a major challenge, particularly for longer range transceivers requiring a high-output-power PA. This paper describes a CMOS transceiver with a deep TX SI cancellation performance over a very wideband (65dBc/80MHz and 70dBc/40MHz). Achieving sufficient TX SI cancellation depth and bandwidth for envisioned 5thGeneration standards using a single component is quite challenging. However, cascading several SI cancellation techniques as the signal passes down the receiver chain appears promising to achieve high TX SI attenuation as was done

👥 作者与机构

Kun-Da Chu, Mohamad Katanbaf, Tong Zhang, Chenxin Su, Jacques C. Rudell