H. van Kempen, W. R. McGrath, P. Richards, A. D. Smith, R. E. Harris, F. Lloyd
{"title":"Conversion Efficiency and Noise Measurements of SIS Array Mixers","authors":"H. van Kempen, W. R. McGrath, P. Richards, A. D. Smith, R. E. Harris, F. Lloyd","doi":"10.1109/ICSWA.1981.9335104","DOIUrl":null,"url":null,"abstract":"Quasiparticle heterodyne mixers which use series arrays [1] of Pb-alloy SIS tunnel junctions have been tested at 36 GHz. These arrays each showed a conversion loss of approximately 5dB. Single-sideband noise temperatures of 9.8 ± 5K, 34 ± 12 K, and 85 ± 25 K were measured for 1, 10 and 50 junction arrays respectively. Significantly increased saturation levels were observed for the 10 and 50 junction arrays.","PeriodicalId":254777,"journal":{"name":"1981 International Conference on Submillimeter Waves and Their Applications","volume":"30 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1981-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1981 International Conference on Submillimeter Waves and Their Applications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICSWA.1981.9335104","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Quasiparticle heterodyne mixers which use series arrays [1] of Pb-alloy SIS tunnel junctions have been tested at 36 GHz. These arrays each showed a conversion loss of approximately 5dB. Single-sideband noise temperatures of 9.8 ± 5K, 34 ± 12 K, and 85 ± 25 K were measured for 1, 10 and 50 junction arrays respectively. Significantly increased saturation levels were observed for the 10 and 50 junction arrays.