An 86-to-94.3GHz Transmitter with 15.3dBm Output Power and 9.6% Efficiency in 65nm CMOS

📋 论文概要

本文设计了一种工作在86-94.3GHz W波段的CMOS发射机，采用65nm工艺实现了15.3dBm输出功率和9.6%的效率，解决了高频段功率与效率的权衡问题，适用于成像和雷达系统。

💡 主要创新点

• 采用65nm CMOS工艺实现W波段高输出功率发射机，无需SiGe或III-V族材料。
• 通过优化功率放大器与匹配网络，在86-94.3GHz宽带内实现了15.3dBm输出功率和9.6%峰值效率。
• 提出了一种低功耗频率合成架构，支持低抖动本振信号生成。

🏷 关键词

📄 原文摘要

Southeast University, Nanjing, China to the TA high gain, the detection inaccuracy of Δt due to the circuit mismatch in PD and CP2 becomes negligibly small. VCCP is designed as a voltage-controlled current source as shown in Fig. 20.3.2. According to the detected Δt, the UP and DN currents in the VCCP are adjusted automatically to compensate for the current mismatch in CP1 to suppress the reference spur. 1 2 In W-band imaging and radar systems, transmitters (TXs) need to generate signals with high output power and low jitter while consuming low power [1,2]. However, existing CMOS W-band TXs need to cascade many power-hungry linear power-amplifier (PA) stages due to low transistor gains and high passive loss [3,4]. Even so, their output power is still quite limited, resulting in low efficiency. In addition, existing W-band phase-locked loops (PLLs) suffer from large jitter because of large phase noise and reference spurs.

👥 作者与机构

Yue Chao1, Lianming Li2, Howard Cam Luong1

Hong Kong University of Science and Technology, Hong Kong, China,