{"title":"一种宽带前馈分布放大器的设计","authors":"A. Prochazka;R. Neumann","doi":"10.1109/TCATV.1980.285810","DOIUrl":null,"url":null,"abstract":"The design of a wideband feedforward amplifier in the frequency range 40-300 MHz is described. It is shown that the technology is now available to push the output level over 1 volt for a 12 channel NCTA crossmodulation ratio of -60 dB, or over 1/2 volt for a 35 channel NCTA crossmodulation ratio of -60 dB. The triple beat and second order distortion are typically -80 dB down at the output level of 1 volt. This ultralinear feedforward amplifier is thus an immediate substitute for two distribution amplifiers of conventional design.","PeriodicalId":100638,"journal":{"name":"IEEE Transactions on Cable Television","volume":"CATV-5 2","pages":"72-79"},"PeriodicalIF":0.0000,"publicationDate":"1980-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/TCATV.1980.285810","citationCount":"1","resultStr":"{\"title\":\"Design of a Wideband Feedforward Distribution Amplifier\",\"authors\":\"A. Prochazka;R. Neumann\",\"doi\":\"10.1109/TCATV.1980.285810\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The design of a wideband feedforward amplifier in the frequency range 40-300 MHz is described. It is shown that the technology is now available to push the output level over 1 volt for a 12 channel NCTA crossmodulation ratio of -60 dB, or over 1/2 volt for a 35 channel NCTA crossmodulation ratio of -60 dB. The triple beat and second order distortion are typically -80 dB down at the output level of 1 volt. This ultralinear feedforward amplifier is thus an immediate substitute for two distribution amplifiers of conventional design.\",\"PeriodicalId\":100638,\"journal\":{\"name\":\"IEEE Transactions on Cable Television\",\"volume\":\"CATV-5 2\",\"pages\":\"72-79\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1980-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1109/TCATV.1980.285810\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Cable Television\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/4065179/\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Cable Television","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/4065179/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Design of a Wideband Feedforward Distribution Amplifier
The design of a wideband feedforward amplifier in the frequency range 40-300 MHz is described. It is shown that the technology is now available to push the output level over 1 volt for a 12 channel NCTA crossmodulation ratio of -60 dB, or over 1/2 volt for a 35 channel NCTA crossmodulation ratio of -60 dB. The triple beat and second order distortion are typically -80 dB down at the output level of 1 volt. This ultralinear feedforward amplifier is thus an immediate substitute for two distribution amplifiers of conventional design.
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