A 2TX Supply Modulator for Envelope-Tracking Power Amplifier Supporting Intra- and Inter-Band Uplink Carrier Aggregation and Power Class-2 High-Power User Equipment

📋 论文概要

本文提出了一种用于包络跟踪功率放大器的双通道供应调制器，支持带内和带间上行载波聚合，解决了多频段同时发射时需要独立调制电源电压的问题。

💡 主要创新点

• 实现了双通道独立调制输出电压，支持多个发射路径同时工作
• 通过高效电路设计同时满足高功率用户设备(HPUE)标准要求

🏷 关键词

📄 原文摘要

Jaeyeol Han1, Junhee Jung1, Jongbeom Baek1, Sungjun Lee1, Euiyoung Park1, Jeonghyun Choi1, Ji-Seon Paek1, Jongwoo Lee1, Thomas Byunghak Cho1, Inyup Kang1 Samsung Electronics, Hwaseong, Korea Samsung Semiconductor, San Jose, CA 1 2 Uplink carrier aggregation (UL-CA) and high-power user equipment (HPUE) are proposed in the recent 3GPP standard [1]. UL-CA increases data-rate by aggregating intra- or inter-band carriers, and requires a supply modulator (SM) IC to generate two independently modulated supply voltages for the separate transmitter (TX) paths. Power Class 2, a new HPUE standard intended for TD-LTE Band41, allows 26dBm output power, which is 3dB higher than typical Power Class 3. To achieve 26dBm output, an SM must provide an RF power amplifier (PA) with larger current and boosted voltage above battery range. However, conventional SM-ICs support only Power Class 3 PAs with intra-band contiguous

👥 作者与机构

Takahiro Nomiyama1, Yongsik Youn2, Younghwan Choo1, Dongsu Kim1,