← 返回 JSSC 论文列表JSSC 2023第7期RF & Wireless0.18µmNeural Network Accelerator
Digital to RF Wideband Multi-Standard Multi-Path Transmitter Reza Ehsani Alashti
本文提出了一种基于八路径架构的多标准数字射频发射器，覆盖300 MHz至1.5 GHz频段，谐波和C-IMD3失真产物抑制优于-40 dBc。
0.18-µm CMOS, 0.58 mm², 10.6-17.6 dBm输出功率, 3.6%-19.7%效率
多标准发射器八路径架构数字射频功率放大器低通滤波器
▸创新点1：八路径架构实现多标准发射（系统创新）。该架构通过多路径技术覆盖300 MHz至1.5 GHz宽频带，支持IEEE 802.11af/ah等多标准，谐波和C-IMD3失真产物抑制优于-40 dBc，显著提升频带兼容性和信号纯度。
▸创新点2：数字域幅度加权算法（方法创新）。在数字基带中实现幅度加权，省去传统混频器、高频滤波器和放大器等功耗模块，简化电路结构，功耗效率提升至3.6%-19.7%，输出功率达10.6-17.6 dBm。
▸创新点3：集成可编程RF低通滤波器（电路创新）。芯片内集成一阶RF-LPF并结合片外滤波器，针对性抑制八路径架构未消除的7/9次谐波，谐波抑制水平满足严苛通信标准要求。
▸创新点4：ANN校准算法（方法创新）。采用人工神经网络校准64-QAM数据，将误差矢量幅度从-21.5 dB优化至-34.1 dB，显著提升高阶调制信号质量。
Abstract
This article presents a mul ti-standard transmitter
based on the eight-path architecture with a fully digital baseband
(BB) input, covering the frequency band from 300 MHz to
1.5 GHz, while all harmonics and the distortion product of
C-IMD3 are rejected to better than −40 dBc. The proposed archi-
tecture is based on the multipath technique in which the ampli-
tude weighting algorithm is implemented in the digital domain.
The fully digital input baseband section of the architecture
eliminates the