{"title":"前馈放大器采用功率传感器进行回路平衡","authors":"M. Gadringer, H. Arthaber, G. Magerl","doi":"10.1109/EUMA.2003.340800","DOIUrl":null,"url":null,"abstract":"Adaptively controlled feedforward amplifiers are discussed in a large number of publications over the past years. So far, for the control of the distortion cancellation loop it seemed inevitable to implement a baseband processing unit at the output of the amplifier if the use of a pilot carrier should be avoided. This paper analyzes a modified feedforward structure, in which power sensors are used to provide the input signals for the loop controllers. The limits of this approach are discussed and measurement results for a 40 W GSM2+ (EDGE) power amplifier are presented.","PeriodicalId":156210,"journal":{"name":"2003 33rd European Microwave Conference, 2003","volume":"8 12 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Feedforward amplifier using power sensors for the loop balancing\",\"authors\":\"M. Gadringer, H. Arthaber, G. Magerl\",\"doi\":\"10.1109/EUMA.2003.340800\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Adaptively controlled feedforward amplifiers are discussed in a large number of publications over the past years. So far, for the control of the distortion cancellation loop it seemed inevitable to implement a baseband processing unit at the output of the amplifier if the use of a pilot carrier should be avoided. This paper analyzes a modified feedforward structure, in which power sensors are used to provide the input signals for the loop controllers. The limits of this approach are discussed and measurement results for a 40 W GSM2+ (EDGE) power amplifier are presented.\",\"PeriodicalId\":156210,\"journal\":{\"name\":\"2003 33rd European Microwave Conference, 2003\",\"volume\":\"8 12 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2003-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2003 33rd European Microwave Conference, 2003\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EUMA.2003.340800\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2003 33rd European Microwave Conference, 2003","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EUMA.2003.340800","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Feedforward amplifier using power sensors for the loop balancing
Adaptively controlled feedforward amplifiers are discussed in a large number of publications over the past years. So far, for the control of the distortion cancellation loop it seemed inevitable to implement a baseband processing unit at the output of the amplifier if the use of a pilot carrier should be avoided. This paper analyzes a modified feedforward structure, in which power sensors are used to provide the input signals for the loop controllers. The limits of this approach are discussed and measurement results for a 40 W GSM2+ (EDGE) power amplifier are presented.
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