{"title":"用于WiMAX应用的40W GaN HEMT Doherty功率放大器，效率为48%","authors":"H. Sano, N. Ui, S. Sano","doi":"10.1109/CSICS07.2007.15","DOIUrl":null,"url":null,"abstract":"A 40W GaN HEMT Doherty power amplifier (PA) for 2.5GHz band was developed. The Doherty PA was designed using large signal GaN HEMT models, and demonstrated a saturation output power of 54dBm (250W) and a drain efficiency of more than 60%. The measurement result shows good agreement with the large signal simulation result. We also investigated the Doherty PA linearity with digital pre-distortion (DPD) system, and obtained a drain efficiency of 48%, an ACLR of -53dBc and a power gain of 13.4dB at the average output power of 46dBm (40W) with 64QAM modulation signal. These superior performances show good suitability for 2.5GHz band WiMAX base stations.","PeriodicalId":370697,"journal":{"name":"2007 IEEE Compound Semiconductor Integrated Circuits Symposium","volume":"72 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"32","resultStr":"{\"title\":\"A 40W GaN HEMT Doherty Power Amplifier with 48% Efficiency for WiMAX Applications\",\"authors\":\"H. Sano, N. Ui, S. Sano\",\"doi\":\"10.1109/CSICS07.2007.15\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A 40W GaN HEMT Doherty power amplifier (PA) for 2.5GHz band was developed. The Doherty PA was designed using large signal GaN HEMT models, and demonstrated a saturation output power of 54dBm (250W) and a drain efficiency of more than 60%. The measurement result shows good agreement with the large signal simulation result. We also investigated the Doherty PA linearity with digital pre-distortion (DPD) system, and obtained a drain efficiency of 48%, an ACLR of -53dBc and a power gain of 13.4dB at the average output power of 46dBm (40W) with 64QAM modulation signal. These superior performances show good suitability for 2.5GHz band WiMAX base stations.\",\"PeriodicalId\":370697,\"journal\":{\"name\":\"2007 IEEE Compound Semiconductor Integrated Circuits Symposium\",\"volume\":\"72 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-11-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"32\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2007 IEEE Compound Semiconductor Integrated Circuits Symposium\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CSICS07.2007.15\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 IEEE Compound Semiconductor Integrated Circuits Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CSICS07.2007.15","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 32
摘要
研制了一种用于2.5GHz频段的40W GaN HEMT Doherty功率放大器。Doherty PA采用大信号GaN HEMT模型设计，饱和输出功率为54dBm (250W)，漏极效率超过60%。测量结果与大信号仿真结果吻合较好。我们还研究了数字预失真(DPD)系统的Doherty PA线性度，在64QAM调制信号的平均输出功率为46dBm (40W)时，漏极效率为48%，ACLR为-53dBc，功率增益为13.4dB。这些优越的性能显示出良好的适用于2.5GHz频段WiMAX基站。
A 40W GaN HEMT Doherty Power Amplifier with 48% Efficiency for WiMAX Applications
A 40W GaN HEMT Doherty power amplifier (PA) for 2.5GHz band was developed. The Doherty PA was designed using large signal GaN HEMT models, and demonstrated a saturation output power of 54dBm (250W) and a drain efficiency of more than 60%. The measurement result shows good agreement with the large signal simulation result. We also investigated the Doherty PA linearity with digital pre-distortion (DPD) system, and obtained a drain efficiency of 48%, an ACLR of -53dBc and a power gain of 13.4dB at the average output power of 46dBm (40W) with 64QAM modulation signal. These superior performances show good suitability for 2.5GHz band WiMAX base stations.
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