{"title":"带优化输出合成器的ka波段GaAs Doherty功率放大器","authors":"Yi-Feng Ye, Zong-Rui Xu, Linsheng Wu, Jun-Fa Mao","doi":"10.1109/IWS55252.2022.9977968","DOIUrl":null,"url":null,"abstract":"$A$ Ka-band power amplifier with Doherty architecture is designed in 0.15-μm GaAs pHEMT technology. The output combiner is optimized with II-type impedance inverting networks to replace λ/4 inverters for broadband characteristic from 23 to 27.5 GHz under large signal analysis. The design equations are provided. The proposed Doherty power amplifier realizes a gain of 12.5∼15.3 dB in small signal operation and a 25.6∼26.3 dBm saturation output power. The power added efficiency is 34.2∼38.4% at saturation and 18.5∼20.8% at 6-dB power back-off, over the whole 4.5-GHz bandwidth.","PeriodicalId":126964,"journal":{"name":"2022 IEEE MTT-S International Wireless Symposium (IWS)","volume":"200 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Ka-Band GaAs Doherty Power Amplifier with Optimized Output Combiner\",\"authors\":\"Yi-Feng Ye, Zong-Rui Xu, Linsheng Wu, Jun-Fa Mao\",\"doi\":\"10.1109/IWS55252.2022.9977968\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"$A$ Ka-band power amplifier with Doherty architecture is designed in 0.15-μm GaAs pHEMT technology. The output combiner is optimized with II-type impedance inverting networks to replace λ/4 inverters for broadband characteristic from 23 to 27.5 GHz under large signal analysis. The design equations are provided. The proposed Doherty power amplifier realizes a gain of 12.5∼15.3 dB in small signal operation and a 25.6∼26.3 dBm saturation output power. The power added efficiency is 34.2∼38.4% at saturation and 18.5∼20.8% at 6-dB power back-off, over the whole 4.5-GHz bandwidth.\",\"PeriodicalId\":126964,\"journal\":{\"name\":\"2022 IEEE MTT-S International Wireless Symposium (IWS)\",\"volume\":\"200 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-08-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2022 IEEE MTT-S International Wireless Symposium (IWS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IWS55252.2022.9977968\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 IEEE MTT-S International Wireless Symposium (IWS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IWS55252.2022.9977968","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Ka-Band GaAs Doherty Power Amplifier with Optimized Output Combiner
$A$ Ka-band power amplifier with Doherty architecture is designed in 0.15-μm GaAs pHEMT technology. The output combiner is optimized with II-type impedance inverting networks to replace λ/4 inverters for broadband characteristic from 23 to 27.5 GHz under large signal analysis. The design equations are provided. The proposed Doherty power amplifier realizes a gain of 12.5∼15.3 dB in small signal operation and a 25.6∼26.3 dBm saturation output power. The power added efficiency is 34.2∼38.4% at saturation and 18.5∼20.8% at 6-dB power back-off, over the whole 4.5-GHz bandwidth.
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