一种用于幅相平衡补偿的新型宽带Doherty合成器

IF 1.6 3区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Youna Jang, Cha Hye Seong, T. Kang, Sang‐Min Han, D. Ahn
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引用次数: 0

摘要

本文提出了一种采用串并联谐振电路的新型宽带Doherty合成器。与传统的合成器不同,所提出的合成器的目的不仅是为了扩展带宽,而且通过在峰值放大器的输出阻抗处采用串联和并联谐振电路来实现相位平衡。考虑到峰值放大器的负载阻抗,本研究通过推导串联和并联谐振电路值,对Doherty合成器进行了理论分析。为目标带宽确定输出相位平衡,以使用串联谐振器在所建议的组合器I中实现均匀相位平衡。为了获得更好的幅度带宽,使用串联谐振器的组合器II端口3处的反射系数(Γ)的斜率使用Γ对ω的导数来推导。实验结果表明,在相位平衡为±2.5°的情况下,所提出的组合器具有63.5%和118%的频宽。所提出的组合器II也具有85%的FBW和118%的FBW,相位平衡为±2.5°。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A New Doherty Combiner with Wide Bandwidth for Magnitude and Phase Balance Compensation
This paper proposes a novel Doherty combiner that uses a series and parallel resonant circuit for wideband. Unlike conventional combiners, the aim of the proposed combiners is to extend bandwidth for not only the magnitude bandwidth, but also phase balance by employing series and parallel resonant circuits at the output impedance of the peaking amplifier. Considering the load impedance of the peaking amplifier, the Doherty combiners were analyzed in the theory of this study by deriving the series and parallel resonant circuit values. The output phase balances are determined for the targeted bandwidth to achieve uniform phase balance in the proposed combiner I using a series resonator. For better magnitude bandwidth, the slope of reflection coefficient (Γ) at port 3 in the combiner II using series resonator was derived using the derivative of Γ with respect to ω. Experimental results show that the proposed combiner I has 63.5% magnitude fractional bandwidth (FBW) and 118% FBW with the phase balance at ±2.5°. The proposed combiner II also has 85% magnitude FBW and 118% FBW with the phase balance at ±2.5°.
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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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