{"title":"Method of power recycling in co-axial mach zender interferometers for low noise measurements","authors":"Stephen Parker, Eugene Ivanov, Michael E. Tobar","doi":"10.1109/FREQ.2008.4623113","DOIUrl":null,"url":null,"abstract":"We present the first experimental study of a new type of power recycling microwave interferometer designed for low noise measurements. This system enhances sensitivity to phase fluctuations in a device under test, independent of input power levels. The single sideband thermal white phase noise floor of the system has been lowered by 8 dB (reaching 185 dBc/Hz at 1 kHz offset frequency) at relatively low power levels (13 dBm).","PeriodicalId":220442,"journal":{"name":"2008 IEEE International Frequency Control Symposium","volume":"98 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 IEEE International Frequency Control Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/FREQ.2008.4623113","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
We present the first experimental study of a new type of power recycling microwave interferometer designed for low noise measurements. This system enhances sensitivity to phase fluctuations in a device under test, independent of input power levels. The single sideband thermal white phase noise floor of the system has been lowered by 8 dB (reaching 185 dBc/Hz at 1 kHz offset frequency) at relatively low power levels (13 dBm).
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