Compact Asymmetrical Quasi-MMIC Doherty Power Amplifier

IF 1.6 3区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Hong‐Sun Yoon, Min Park, J. Yook, Dongsu Kim, Youngcheol Park
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引用次数: 0

Abstract

This paper presents a compact asymmetrical Doherty power amplifier (PA) based on a quasi-MMIC configuration for 5G sub-6 GHz applications. The proposed Doherty PA is composed of commercial GaN HEMTs and several passive components implemented on a silicon (Si) substrate. In order to achieve size and cost advantages, passive components such as a power divider, input matching networks, output matching networks, and a Doherty combiner are realized using Si-integrated passive device (Si-IPD) technology, which costs about 40% of the budget for the entire GaN MMIC process. For the 3.5 GHz pulsed-continuous waveform signal, the fabricated Doherty PA has an efficiency of 52.6% at a saturated output power of 44.2 dBm. Furthermore, an efficiency of 45.6% was achieved with the output power back-off (OBO) of 7.0 dB. The implemented PA occupies only 8.9 mm × 5.6 mm.
紧凑型非对称准MMIC Doherty功率放大器
本文提出了一种基于准MMIC配置的紧凑型不对称多尔蒂功率放大器(PA),用于5G亚6GHz的应用。所提出的Doherty PA由商用GaN HEMT和在硅(Si)衬底上实现的几个无源元件组成。为了实现尺寸和成本优势,使用硅集成无源器件(Si-IPD)技术来实现诸如功率分配器、输入匹配网络、输出匹配网络和多尔蒂组合器之类的无源组件,该技术的成本约为整个GaN MMIC工艺预算的40%。对于3.5GHz脉冲连续波形信号,所制造的Doherty PA在44.2dBm的饱和输出功率下具有52.6%的效率。此外,在输出功率回退(OBO)为7.0dB的情况下,实现了45.6%的效率。所实现的PA仅占用8.9mm×5.6mm。
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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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