71-to-89GHz 12Gb/s Double-Edge-Triggered Quadrature RFDAC with LO Leakage Suppression Achieving 20.5dBm Peak Output Power and 20.4% System Efficiency

📋 论文概要

本文提出一种工作在71-89GHz的12Gb/s双沿触发正交RFDAC，通过双沿触发技术提高数据率，并采用LO泄漏抑制技术增强性能，实现了20.5dBm的峰值输出功率，适用于E-band多Gb/s无线通信。

💡 主要创新点

• 提出双沿触发（DET）技术，在正交RFDAC中实现两倍于时钟频率的数据率，提高调制效率。
• 设计LO泄漏抑制电路，有效降低本振泄漏，改善输出信号质量。

🏷 关键词

📄 原文摘要

The growing demand of millimeter-wave (mm-wave) wireless transmission leads to the requirement of low-cost, high-efficiency, and multi-Gb/s data-rate wireless systems. Allocated by the Federal Communications Commission (FCC) and Europe Conference of Postal and Telecommunications (CEPT), the 71-to-76GHz and 81-to-86GHz bands (i.e., the E-band), enable the multi-Gb/s wireless communications [1]. The mm-wave CMOS RF digital-to-analog converters (RFDACs) [2-5] with merits of high system efficiency (SE), simplified system architecture with directly digital modulation, high data-rate, and low cost have drawn great attention. However, the maximal data-rates of these RFDACs are lower than 8Gb/s. To support higher data-rate (e.g., more than 10Gb/s) for E-band applications, high-order modulation signals with large bandwidth must be supported. High sampling frequency is required for RFDACs to achieve large modulation bandwidth,

👥 作者与机构

Bingzheng Yang, Zhixian Deng, Huizhen Jenny Qian, Xun Luo

University of Electronic Science and Technology of China, Chengdu, China