N-way Digitally Driven Doherty Power Amplifier Design and Analysis for Ku band Applications

S. Madhuwantha, Prasidh Ramabadran, R. Farrell, J. Dooley
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引用次数: 1

Abstract

With an increasing interest in backwards compatibility for existing satellites and the emerging satellite markets, wireless transceivers at Ku band are increasing in popularity. This paper presents the design of a four-way digitally driven Doherty amplifier, aimed at applications in Ku-band. Single tone measurements indicate a maximum drain efficiency of 53.4% at a maximum of 19.2 dBm output power. The final output power can readily be adjusted by changing the biasing in each stage accordingly. The N-way Doherty power amplifier was tested with an 800 MHz bandwidth, 64 QAM test signal aimed for future communication signal standards. An analysis of this configuration has also been performed for 2-way, 3-way and 4-way architectures.
Ku波段n路数字驱动多尔蒂功率放大器的设计与分析
随着人们对现有卫星和新兴卫星市场的向后兼容性越来越感兴趣,Ku波段的无线收发器越来越受欢迎。本文针对ku波段的应用,设计了一种四路数字驱动多赫蒂放大器。单音测量表明,在最大输出功率为19.2 dBm时,最大漏极效率为53.4%。最后的输出功率可以很容易地调整,通过改变偏置在每个阶段相应。针对未来通信信号标准,对n路多尔蒂功率放大器进行了800 MHz带宽,64 QAM测试信号的测试。还对2路、3路和4路架构执行了此配置的分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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