{"title":"基于测量的具有记忆效应的宽带功率放大器建模精度","authors":"Wei Gao, Tao Jing","doi":"10.1109/ITC44778.2020.9325245","DOIUrl":null,"url":null,"abstract":"In this paper, an accurate modeling approach to wideband Wi-Fi power amplifiers (PA) with memory effects is presented. Modeling accuracy is improved by interpolating the measured data from a low sampling rate of 40 MHz to high data rates with different interpolation factors based on the propagation delay of the actual PA. A memory polynomial (MP) model of the PA is able to characterize both nonlinear properties and memory effects of the actual PA; especially for wide bandwidth Wi-Fi OFDM signal transmission. With this improved MP model of the PA, another similar memory polynomial model for the predistorter (PD) is developed to linearize wideband WiFi PAs.","PeriodicalId":251504,"journal":{"name":"2020 IEEE International Test Conference (ITC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Modeling Accuracy of Wideband Power Amplifiers with Memory effects via Measurements\",\"authors\":\"Wei Gao, Tao Jing\",\"doi\":\"10.1109/ITC44778.2020.9325245\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, an accurate modeling approach to wideband Wi-Fi power amplifiers (PA) with memory effects is presented. Modeling accuracy is improved by interpolating the measured data from a low sampling rate of 40 MHz to high data rates with different interpolation factors based on the propagation delay of the actual PA. A memory polynomial (MP) model of the PA is able to characterize both nonlinear properties and memory effects of the actual PA; especially for wide bandwidth Wi-Fi OFDM signal transmission. With this improved MP model of the PA, another similar memory polynomial model for the predistorter (PD) is developed to linearize wideband WiFi PAs.\",\"PeriodicalId\":251504,\"journal\":{\"name\":\"2020 IEEE International Test Conference (ITC)\",\"volume\":\"62 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 IEEE International Test Conference (ITC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ITC44778.2020.9325245\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE International Test Conference (ITC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ITC44778.2020.9325245","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Modeling Accuracy of Wideband Power Amplifiers with Memory effects via Measurements
In this paper, an accurate modeling approach to wideband Wi-Fi power amplifiers (PA) with memory effects is presented. Modeling accuracy is improved by interpolating the measured data from a low sampling rate of 40 MHz to high data rates with different interpolation factors based on the propagation delay of the actual PA. A memory polynomial (MP) model of the PA is able to characterize both nonlinear properties and memory effects of the actual PA; especially for wide bandwidth Wi-Fi OFDM signal transmission. With this improved MP model of the PA, another similar memory polynomial model for the predistorter (PD) is developed to linearize wideband WiFi PAs.
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