Leyan Wan;Songbai He;Cheng Zhong;Tianyang Zhong;Mingyu Liu;Yuchen Bian;Haiqian Tang;Chuan Li;Fei You
{"title":"具有回退可重构性的高效对称Doherty功率放大器","authors":"Leyan Wan;Songbai He;Cheng Zhong;Tianyang Zhong;Mingyu Liu;Yuchen Bian;Haiqian Tang;Chuan Li;Fei You","doi":"10.1109/LMWT.2024.3517706","DOIUrl":null,"url":null,"abstract":"This letter presents the design of a symmetrical Doherty power amplifier (DPA) with output power back-off (OBO) range reconfigurability by using a new and explicit circuit model. The theoretical analysis reveals that OBO range (>9 dB) can be extended and controlled without changing the circuit structure, taking advantage of the phase shift of DPA matching subnetworks and adjusting the drain bias. To verify the proposed theory, a DPA is designed across 2–2.4 GHz with a 9-dB OBO range. Also, 11 dB can be further implemented by drain bias adjusting. The experimental results show drain efficiencies of 47%–52% at 9-dB OBO levels and 45%–49% at 11-dB OBO levels across 2–2.4 GHz, respectively.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 2","pages":"209-212"},"PeriodicalIF":0.0000,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A High-Efficiency Symmetrical Doherty Power Amplifier With Back-Off Reconfigurability\",\"authors\":\"Leyan Wan;Songbai He;Cheng Zhong;Tianyang Zhong;Mingyu Liu;Yuchen Bian;Haiqian Tang;Chuan Li;Fei You\",\"doi\":\"10.1109/LMWT.2024.3517706\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This letter presents the design of a symmetrical Doherty power amplifier (DPA) with output power back-off (OBO) range reconfigurability by using a new and explicit circuit model. The theoretical analysis reveals that OBO range (>9 dB) can be extended and controlled without changing the circuit structure, taking advantage of the phase shift of DPA matching subnetworks and adjusting the drain bias. To verify the proposed theory, a DPA is designed across 2–2.4 GHz with a 9-dB OBO range. Also, 11 dB can be further implemented by drain bias adjusting. The experimental results show drain efficiencies of 47%–52% at 9-dB OBO levels and 45%–49% at 11-dB OBO levels across 2–2.4 GHz, respectively.\",\"PeriodicalId\":73297,\"journal\":{\"name\":\"IEEE microwave and wireless technology letters\",\"volume\":\"35 2\",\"pages\":\"209-212\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-12-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE microwave and wireless technology letters\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10815103/\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"0\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE microwave and wireless technology letters","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10815103/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"0","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
A High-Efficiency Symmetrical Doherty Power Amplifier With Back-Off Reconfigurability
This letter presents the design of a symmetrical Doherty power amplifier (DPA) with output power back-off (OBO) range reconfigurability by using a new and explicit circuit model. The theoretical analysis reveals that OBO range (>9 dB) can be extended and controlled without changing the circuit structure, taking advantage of the phase shift of DPA matching subnetworks and adjusting the drain bias. To verify the proposed theory, a DPA is designed across 2–2.4 GHz with a 9-dB OBO range. Also, 11 dB can be further implemented by drain bias adjusting. The experimental results show drain efficiencies of 47%–52% at 9-dB OBO levels and 45%–49% at 11-dB OBO levels across 2–2.4 GHz, respectively.
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