A SAW-Less NB-IoT RF Transceiver with Hybrid Polar and On-Chip Switching PA Supporting Power Class 3 Multi-Tone Transmission

📋 论文概要

本文提出一种无SAW滤波器的NB-IoT射频收发器，采用混合极性发射机和片上升关功率放大器，支持功率等级3的多音传输。解决了高集成度、低功耗、低成本且与LTE系统相同发射功率的需求。

💡 主要创新点

• 采用混合极性（Hybrid Polar）发射机架构，实现高效线性发射。
• 集成片上升关功率放大器（Switching PA），支持多音传输并省去SAW滤波器。
• 无SAW（SAW-less）设计，降低成本和面积，同时满足NB-IoT功率等级3要求。

🏷 关键词

📄 原文摘要

communication technology that benefits from the advantages of both cellular networks and narrowband transmission. Since the NB-IoT specification was finalized by 3GPP in 2016, several SoCs [1,2] and an RF transceiver [3] as well as power amplifiers (PA) [4-5] for NB-IoT have been reported. Highly integrated, lowpower and low-cost design with the same transmission power levels as existing LTE systems are required. This paper demonstrates a SAW-less NB-IoT RF transceiver with a hybrid polar transmitter and an on-chip switching PA supporting Power Class 3 multi-tone transmission. The system diagram of the RF transceiver is shown in Fig. 30.3.1. The RF transceiver can support all NB-IoT bands in the 450MHz-to-960MHz and 1561MHzto-2220MHz frequency ranges, with two separate RF ports for high-band (HB) and

👥 作者与机构

Huimin Guo, Tat Fu Chan, Yat Tung Lai, Kam Chuen Wan, Lu Chen, Wai Po Wong

Hong Kong Applied Science and Technology Research Institute, Hong Kong, China The Narrowband-Internet-of-Things (NB-IoT) is a narrowband wireless