{"title":"输入谐波控制的线性增强Doherty功率放大器设计策略","authors":"Cheng Zhong;Songbai He;Minxian Song;Yongwen Yin;Xubin Zhang;Ce Shen","doi":"10.1109/LMWT.2024.3524123","DOIUrl":null,"url":null,"abstract":"In this letter, a linearity-enhanced Doherty power amplifier (DPA) design strategy based on input second-harmonics control is proposed. By combining the load modulation process and analyzing the gain compression and phase changes caused by introducing input harmonics, suitable harmonic parameters are determined. The proposed method helps to reduce amplitude-to-amplitude (AM-AM) and amplitude-to-phase (AM-PM) distortion. Moreover, this method has a minimal impact on efficiency. To verify this method, a linearity-enhanced DPA is designed to operate within 3.2–3.7 GHz. Test results exhibit AM-AM distortion within 0.75 dB, AM-PM distortion within 3°, and the adjacent channel power ratio (ACPR) better than −40 dBc under 80-MHz modulated signal excitation.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 3","pages":"350-353"},"PeriodicalIF":0.0000,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Design Strategy for Linearity-Enhanced Doherty Power Amplifier by Input Harmonics Control\",\"authors\":\"Cheng Zhong;Songbai He;Minxian Song;Yongwen Yin;Xubin Zhang;Ce Shen\",\"doi\":\"10.1109/LMWT.2024.3524123\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this letter, a linearity-enhanced Doherty power amplifier (DPA) design strategy based on input second-harmonics control is proposed. By combining the load modulation process and analyzing the gain compression and phase changes caused by introducing input harmonics, suitable harmonic parameters are determined. The proposed method helps to reduce amplitude-to-amplitude (AM-AM) and amplitude-to-phase (AM-PM) distortion. Moreover, this method has a minimal impact on efficiency. To verify this method, a linearity-enhanced DPA is designed to operate within 3.2–3.7 GHz. Test results exhibit AM-AM distortion within 0.75 dB, AM-PM distortion within 3°, and the adjacent channel power ratio (ACPR) better than −40 dBc under 80-MHz modulated signal excitation.\",\"PeriodicalId\":73297,\"journal\":{\"name\":\"IEEE microwave and wireless technology letters\",\"volume\":\"35 3\",\"pages\":\"350-353\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-01-13\",\"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/10838387/\",\"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/10838387/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"0","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
A Design Strategy for Linearity-Enhanced Doherty Power Amplifier by Input Harmonics Control
In this letter, a linearity-enhanced Doherty power amplifier (DPA) design strategy based on input second-harmonics control is proposed. By combining the load modulation process and analyzing the gain compression and phase changes caused by introducing input harmonics, suitable harmonic parameters are determined. The proposed method helps to reduce amplitude-to-amplitude (AM-AM) and amplitude-to-phase (AM-PM) distortion. Moreover, this method has a minimal impact on efficiency. To verify this method, a linearity-enhanced DPA is designed to operate within 3.2–3.7 GHz. Test results exhibit AM-AM distortion within 0.75 dB, AM-PM distortion within 3°, and the adjacent channel power ratio (ACPR) better than −40 dBc under 80-MHz modulated signal excitation.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
