Deep Neural Network for the Behavioral Modeling of Memory Effects and Supply Dependency on 10-W Nonlinear Power Amplifiers

IF 1.6 3区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Mihyang Kang, Sieon Lim, Youngcheol Park
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引用次数: 1

Abstract

In this paper, a deep neural network (DNN) model is proposed for the behavioral modeling of nonlinear power amplifiers with supply dependency. Although the conventional nonlinear model, such as the Volterra series, has high accuracy, it is not commonly implemented because of its complexity. However, with manageable complexity, the multidimensional input parameters of the proposed model ensure the modeling of the nonlinear behavior of power amplifiers with supply voltage dependency. The proposed model is trained by multi-tone signals on a 10-W power amplifier and validated by comparing the output spectrum and the third-order intermodulation (IMD3) of the model versus the measured data. The output spectrum shows less than 0.38 dB of error over a bandwidth of 10 MHz and input power from 11 dBm to 17 dBm, and the IMD3 error is less than 0.1 dB over the output power range.
基于深度神经网络的10w非线性功率放大器记忆效应和电源依赖行为建模
本文提出了一种基于深度神经网络(DNN)的非线性功率放大器的行为建模方法。传统的非线性模型,如Volterra系列,虽然具有较高的精度,但由于其复杂性,通常不被实现。然而,在可控制的复杂性下,该模型的多维输入参数保证了具有电源电压依赖性的功率放大器非线性行为的建模。在10w功率放大器上用多音信号训练该模型,并将模型的输出频谱和三阶互调(IMD3)与实测数据进行比较,验证了该模型的有效性。在带宽为10 MHz、输入功率为11 ~ 17 dBm范围内,输出频谱误差小于0.38 dB,在输出功率范围内,IMD3误差小于0.1 dB。
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来源期刊
Journal of electromagnetic engineering and science
Journal of electromagnetic engineering and science ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
2.90
自引率
17.40%
发文量
82
审稿时长
10 weeks
期刊介绍: The Journal of Electromagnetic Engineering and Science (JEES) is an official English-language journal of the Korean Institute of Electromagnetic and Science (KIEES). This journal was launched in 2001 and has been published quarterly since 2003. It is currently registered with the National Research Foundation of Korea and also indexed in Scopus, CrossRef and EBSCO, DOI/Crossref, Google Scholar and Web of Science Core Collection as Emerging Sources Citation Index(ESCI) Journal. The objective of JEES is to publish academic as well as industrial research results and discoveries in electromagnetic engineering and science. The particular scope of the journal includes electromagnetic field theory and its applications: High frequency components, circuits, and systems, Antennas, smart phones, and radars, Electromagnetic wave environments, Relevant industrial developments.
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