Doherty power amplifier with simplified out‐of‐phase power splitter for 5G applications
Abstract This letter presents the architecture and characterization of a Doherty power amplifier (DPA) with a simplified out‐of‐phase power splitter (SOPPS) for fifth‐generation (5G) small‐cell applications. The proposed SOPPS consists of two passive components, which is conducive to chip miniaturiz...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-07-01
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| Series: | Electronics Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/ell2.12875 |
| _version_ | 1797784183477633024 |
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| author | Jianqiang Chen Zhihao Zhang Jiajin Li Yuhan Guan Weilong Tang Gary Zhang |
| author_facet | Jianqiang Chen Zhihao Zhang Jiajin Li Yuhan Guan Weilong Tang Gary Zhang |
| author_sort | Jianqiang Chen |
| collection | DOAJ |
| description | Abstract This letter presents the architecture and characterization of a Doherty power amplifier (DPA) with a simplified out‐of‐phase power splitter (SOPPS) for fifth‐generation (5G) small‐cell applications. The proposed SOPPS consists of two passive components, which is conducive to chip miniaturization. Additionally, a stable DPA architecture is employed to avoid oscillation caused by out‐of‐phase ports imbalance. A DPA based on gallium arsenide (GaAs) heterojunction bipolar transistor (HBT) technology is fabricated, achieving high gain of 32 dB over 2.5 to 2.7 GHz. Using a continuous‐wave signal, the DPA exhibits a saturation output power of 36 dBm, with a peak power‐added efficiency (PAE) of 42.3% and 37% at saturation and 6‐dB power‐back‐off, respectively, across the operating band. |
| first_indexed | 2024-03-13T00:36:21Z |
| format | Article |
| id | doaj.art-f546cb87089c40e6ada3735c11f9420c |
| institution | Directory Open Access Journal |
| issn | 0013-5194 1350-911X |
| language | English |
| last_indexed | 2024-03-13T00:36:21Z |
| publishDate | 2023-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj.art-f546cb87089c40e6ada3735c11f9420c2023-07-10T05:18:29ZengWileyElectronics Letters0013-51941350-911X2023-07-015913n/an/a10.1049/ell2.12875Doherty power amplifier with simplified out‐of‐phase power splitter for 5G applicationsJianqiang Chen0Zhihao Zhang1Jiajin Li2Yuhan Guan3Weilong Tang4Gary Zhang5School of Information Engineering Guangdong University of Technology GuangzhouChinaSchool of Integrated Circuits Guangdong University of Technology GuangzhouChinaSchool of Information Engineering Guangdong University of Technology GuangzhouChinaSchool of Integrated Circuits Guangdong University of Technology GuangzhouChinaSchool of Integrated Circuits Guangdong University of Technology GuangzhouChinaSchool of Integrated Circuits Guangdong University of Technology GuangzhouChinaAbstract This letter presents the architecture and characterization of a Doherty power amplifier (DPA) with a simplified out‐of‐phase power splitter (SOPPS) for fifth‐generation (5G) small‐cell applications. The proposed SOPPS consists of two passive components, which is conducive to chip miniaturization. Additionally, a stable DPA architecture is employed to avoid oscillation caused by out‐of‐phase ports imbalance. A DPA based on gallium arsenide (GaAs) heterojunction bipolar transistor (HBT) technology is fabricated, achieving high gain of 32 dB over 2.5 to 2.7 GHz. Using a continuous‐wave signal, the DPA exhibits a saturation output power of 36 dBm, with a peak power‐added efficiency (PAE) of 42.3% and 37% at saturation and 6‐dB power‐back‐off, respectively, across the operating band.https://doi.org/10.1049/ell2.12875Doherty power amplifierout‐of‐phase power splittersimplificationstabilization |
| spellingShingle | Jianqiang Chen Zhihao Zhang Jiajin Li Yuhan Guan Weilong Tang Gary Zhang Doherty power amplifier with simplified out‐of‐phase power splitter for 5G applications Electronics Letters Doherty power amplifier out‐of‐phase power splitter simplification stabilization |
| title | Doherty power amplifier with simplified out‐of‐phase power splitter for 5G applications |
| title_full | Doherty power amplifier with simplified out‐of‐phase power splitter for 5G applications |
| title_fullStr | Doherty power amplifier with simplified out‐of‐phase power splitter for 5G applications |
| title_full_unstemmed | Doherty power amplifier with simplified out‐of‐phase power splitter for 5G applications |
| title_short | Doherty power amplifier with simplified out‐of‐phase power splitter for 5G applications |
| title_sort | doherty power amplifier with simplified out of phase power splitter for 5g applications |
| topic | Doherty power amplifier out‐of‐phase power splitter simplification stabilization |
| url | https://doi.org/10.1049/ell2.12875 |
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