{"title":"基于gan的数字发射机链,利用推挽栅极驱动器实现高开关速度和内置DPD","authors":"Florian Huhn, A. Wentzel, W. Heinrich","doi":"10.23919/EUMIC.2017.8230669","DOIUrl":null,"url":null,"abstract":"This paper presents a fully digital transmitter chain, including a modulator and a digital microwave power amplifier (PA) MMIC. It uses push-pull drivers for the gates of the class-D final stage for improved switching speed. To the authors' knowledge this is the first time this approach is implemented on a GaN HEMT process. The performance of the flexible and compact chip is evaluated with modulated baseband signals at a 900 MHz carrier. For encoding the IQ signals into a binary stream, a modulation scheme with a built-in DPD is used, resulting in a higher line-up efficiency as no additional computational power is dissipated. ACLR values of more than 43.5 dB are reached almost fulfilling the 3GPP spectral requirements. A comparison of achieved signal quality to other publications is given.","PeriodicalId":120932,"journal":{"name":"2017 12th European Microwave Integrated Circuits Conference (EuMIC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"GaN-based digital transmitter chain utilizing push-pull gate drivers for high switching speed and built-in DPD\",\"authors\":\"Florian Huhn, A. Wentzel, W. Heinrich\",\"doi\":\"10.23919/EUMIC.2017.8230669\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a fully digital transmitter chain, including a modulator and a digital microwave power amplifier (PA) MMIC. It uses push-pull drivers for the gates of the class-D final stage for improved switching speed. To the authors' knowledge this is the first time this approach is implemented on a GaN HEMT process. The performance of the flexible and compact chip is evaluated with modulated baseband signals at a 900 MHz carrier. For encoding the IQ signals into a binary stream, a modulation scheme with a built-in DPD is used, resulting in a higher line-up efficiency as no additional computational power is dissipated. ACLR values of more than 43.5 dB are reached almost fulfilling the 3GPP spectral requirements. A comparison of achieved signal quality to other publications is given.\",\"PeriodicalId\":120932,\"journal\":{\"name\":\"2017 12th European Microwave Integrated Circuits Conference (EuMIC)\",\"volume\":\"15 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2017 12th European Microwave Integrated Circuits Conference (EuMIC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.23919/EUMIC.2017.8230669\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 12th European Microwave Integrated Circuits Conference (EuMIC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/EUMIC.2017.8230669","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
GaN-based digital transmitter chain utilizing push-pull gate drivers for high switching speed and built-in DPD
This paper presents a fully digital transmitter chain, including a modulator and a digital microwave power amplifier (PA) MMIC. It uses push-pull drivers for the gates of the class-D final stage for improved switching speed. To the authors' knowledge this is the first time this approach is implemented on a GaN HEMT process. The performance of the flexible and compact chip is evaluated with modulated baseband signals at a 900 MHz carrier. For encoding the IQ signals into a binary stream, a modulation scheme with a built-in DPD is used, resulting in a higher line-up efficiency as no additional computational power is dissipated. ACLR values of more than 43.5 dB are reached almost fulfilling the 3GPP spectral requirements. A comparison of achieved signal quality to other publications is given.