{"title":"一种简化前馈功率放大器配置的简单方法","authors":"Xiaowei Zhu, Jianyi Zhou, W. Hong, Hongxin Zhao","doi":"10.1109/MWSYM.2000.863300","DOIUrl":null,"url":null,"abstract":"This paper describes a low cost and simple design method for feedforward linear power amplifier. The adaptive control techniques are employed in loop I to cancel carrier and extract error signal. In the loop II, the lookup table method of temperature correction is utilized for ensuring third-order intermodulation products (IMD/sub 3/) cancellation. The achievement has been realized in 460 MHz multicarrier power amplifier and CDMA base station power amplifier. The two-tone (IMD/sub 3/) are less than 62 dBc and the operation bandwidth is more than 20 MHz at 460 MHz. The ACPR of CDMA power amplifier is better than 40 dBc.","PeriodicalId":149404,"journal":{"name":"2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"A simple method to cut down configuration of feedforward power amplifier\",\"authors\":\"Xiaowei Zhu, Jianyi Zhou, W. Hong, Hongxin Zhao\",\"doi\":\"10.1109/MWSYM.2000.863300\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper describes a low cost and simple design method for feedforward linear power amplifier. The adaptive control techniques are employed in loop I to cancel carrier and extract error signal. In the loop II, the lookup table method of temperature correction is utilized for ensuring third-order intermodulation products (IMD/sub 3/) cancellation. The achievement has been realized in 460 MHz multicarrier power amplifier and CDMA base station power amplifier. The two-tone (IMD/sub 3/) are less than 62 dBc and the operation bandwidth is more than 20 MHz at 460 MHz. The ACPR of CDMA power amplifier is better than 40 dBc.\",\"PeriodicalId\":149404,\"journal\":{\"name\":\"2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017)\",\"volume\":\"2 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-06-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSYM.2000.863300\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.2000.863300","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A simple method to cut down configuration of feedforward power amplifier
This paper describes a low cost and simple design method for feedforward linear power amplifier. The adaptive control techniques are employed in loop I to cancel carrier and extract error signal. In the loop II, the lookup table method of temperature correction is utilized for ensuring third-order intermodulation products (IMD/sub 3/) cancellation. The achievement has been realized in 460 MHz multicarrier power amplifier and CDMA base station power amplifier. The two-tone (IMD/sub 3/) are less than 62 dBc and the operation bandwidth is more than 20 MHz at 460 MHz. The ACPR of CDMA power amplifier is better than 40 dBc.
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