A 24GHz Direct Digital Transmitter Using Multiphase Subharmonic Switching PA Achieving 3.2Gb/s Data Rate and -30.8dB EVM in 65nm CMOS

📋 论文概要

该论文提出了一种24GHz直接数字发射机，采用多相次谐波开关功率放大器，实现了3.2Gb/s的数据速率和-30.8dB的EVM，旨在解决K/Ka波段通信和雷达应用中高PAPR下的功率回退效率问题。

💡 主要创新点

• 采用多相次谐波开关PA架构，在24GHz频段实现高效直接数字发射。
• 通过创新的开关技术，在保持高数据速率的同时显著降低EVM。

🏷 关键词

📄 原文摘要

employment of K/Ka-band for sensing and communication purposes, such as 5G systems and radar applications, has gained increasing interest. These systems commonly make use of an array of transmitters (TX) and antennas, each operating at a moderate output power level with low in-band EVM, capable of handling high peak-to-average power ratios (PAPR) that result from spectrum-efficient modulations. Therefore, the power back-off (PBO) efficiency plays a critical role in optimizing power utilization and managing thermal considerations. In addition, modern-day wireless communication standards demand higher signal data rates ranging from hundreds of megabits/s to several gigabits/s. Therefore, a TX with wide signal bandwidth (BW), low EVM, and high efficiency at deep PBO is desirable,

👥 作者与机构

Soumya Mahapatra1, Mostafa Ayesh1, Ce Yang1, Mayank Palaria1, Shiyu Su1,2,

Aoyang Zhang3, Mike Shuo-Wei Chen1 University of Southern California, Los Angeles, CA University of Waterloo, Waterloo, Canada 3 Tsinghua University, Beijing, China 1 2 The