全数字发射机用B类功率放大器的设计与分析

2019 IEEE MTT-S International Microwave and RF Conference (IMARC) Pub Date : 2019-12-01 DOI:10.1109/IMaRC45935.2019.9118687

Sanket Chaudhary, N. Carvalho, Arnaldo S. R. Oliveira

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引用次数: 0

摘要

本文介绍了一种全数字应用的B类功率放大器的设计与分析。开明功率放大器的设计频率为868 MHz，适用于低功率广域网(LPWAN)等应用。从功率辅助效率(PAE)和增益两个方面分析了数字射频脉冲功率放大器与简单射频功率的比较。该功率放大器的回波损耗为~ 26dB，信号增益为~ 18.5dB, PAE为~ 47%，(长期演进)LTE调制信号的误差矢量幅度(EVM)为~ 2.5%。

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Design and Analysis of Class B Power Amplifier to be Used in All Digital Transmitters

This paper presents a design and analysis of the class B power amplifier for all digital applications. The enlightened power amplifier is designed at 868 MHz for an application such as Low-Power Wide Area Network (LPWAN). Analysis of the power amplifier for the digital RF pulsed power in comparison of simple RF power has been addressed in term of Power Aided Efficiency (PAE) and gain. Characterized power amplifier offers a return loss of ˜26dB, a large signal gain of ˜18.5dB, a PAE of ˜ 47%, and Error Vector Magnitude (EVM) for (Long-Term Evolution) LTE modulated signal with ˜2.5%.

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2019 IEEE MTT-S International Microwave and RF Conference (IMARC)

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