A Power-Efficient 24-to-71GHz CMOS Phased-Array Receiver Utilizing Harmonic-Selection Technique Supporting 36dB Inter-Band Blocker Rejection for 5G NR

📋 论文概要

该论文提出了一种利用谐波选择技术的24至71GHz CMOS相控阵接收机，解决了多频段5G FR2接收中LO频率覆盖范围大、功耗高的问题。通过谐波选择技术，实现了宽频带覆盖和低功耗，同时保持了高镜像抑制能力。

💡 主要创新点

• 采用谐波选择技术，通过利用谐波混频实现宽频带覆盖，降低了所需LO频率范围，从而显著降低功耗。
• 设计了基于Hartley架构的接收机，实现了超过30dB的镜像抑制，有效抑制了带间干扰。
• 实现了24至71GHz的连续频率覆盖，支持多个5G FR2频段，同时保持了高能效和紧凑的芯片面积。

🏷 关键词

📄 原文摘要

Multi-band receivers have been developed to realize reception over multiple 5G FR2 bands with minimized system size [1-3]. The conventional multi-band receiver achieves 20-to-44GHz frequency coverage with wide-band RF response and fixed IF [3]. However, facing the fast-scaling 5G FR2 band, the power consumption of such receivers will be increased tremendously due to the enlarged LO frequency coverage. The Hartley receiver architecture has been introduced to decrease the required LO range [1,2]. Over 30dB Image rejection could also be maintained to provide the inter-band blocker rejection for a dual-band operation. However, the overall system NF is degraded due to amplified noise from the image band and the achievable bandwidth is also limited. This work

👥 作者与机构

Jian Pang, Yi Zhang, Zheng Li, Minzhe Tang, Yijing Liao, Ashbir Aviat Fadila,

Atsushi Shirane, Kenichi Okada Tokyo Institute of Technology, Tokyo, Japan The coverage of 5G NR frequency range 2 (FR2) keeps scaling towards over 100GHz