An 802.11ac Dual-Band Reconfigurable Transceiver Supporting up to Four VHT80 Spatial Streams with 116fsrms-Jitter Frequency Synthesizer and Integrated LNA/PA Delivering 256QAM 19dBm per Stream Achieving 1.733Gb/s PHY Rate

📋 论文概要

本文提出了一款支持802.11ac标准的双频段可重构收发器，能够处理最多4个VHT80空间流，并实现了116fsrms的低抖动频率合成器，解决了高数据速率下多流传输和低相位噪声的需求。

💡 主要创新点

• 采用双频段可重构架构，同时支持2.4GHz和5GHz频段，适应不同应用场景。
• 实现了116fsrms的超低抖动频率合成器，满足802.11ac对高信噪比和复杂调制的要求。
• 支持最多4个VHT80空间流，显著提升系统吞吐量，达到1.733Gb/s的PHY速率。

🏷 关键词

📄 原文摘要

Ming-Chung Liu1, Po-Yu Chang1, Chia-Jen Liang1, Yi-Chu Chen1, Hsi-Liang Lu1, Jian-Yu Ding1, Chin-Chung Wang1, Yu-Li Hsueh1, Jen-Che Tsai1, Min-Shun Hsu1, Yuan-Hung Chung1, George Chien2 MediaTek, Hsinchu, Taiwan; 2MediaTek, San Jose, CA 1 In recent years, the explosive growth of handheld smart devices has demanded increasing network capacity and higher data-rate. With around 1GHz bandwidth in the 5GHz UNII frequency band, 802.11ac offers great flexibility in utilizing a wider signal bandwidth and more complex modulation scheme to achieve the PHY rate up to 1.733Gb/s with VHT160 2×2 MIMO. The increased signal bandwidth from 80MHz (Stage1) to 160MHz (Stage2) poses stringent design challenges for radio transceivers, such as tighter frequency synthesizer phase-noise requirement for better EVM floor, techniques of using integrated high-power PAs for achieving 160MHz operation, and overcoming the effect of LPF 3dB-corner-mismatchinduced Frequency-Dependent IQ imbalance (FD-IQ) [1] due to fin

👥 作者与机构

Tsung-Ming Chen1, Yi Lu1, Pang-Ning Chen1, Yu-Hsien Chang1,