N. Erickson, R. Grosslein, R. Erickson, S. Weinreb
{"title":"A cryogenic focal plane array for 85-115 GHz using MMIC preamplifiers","authors":"N. Erickson, R. Grosslein, R. Erickson, S. Weinreb","doi":"10.1109/22.808962","DOIUrl":null,"url":null,"abstract":"A new focal plane array for 85-115 GHz is described. This array has 16 pixels, and uses InP MMIC preamplifiers with 40 dB gain, followed by a wideband subharmonic mixer to convert to a 5-20 GHz IF band. A low loss isolator is used to achieve an excellent input match. Square corrugated feed horns are used for efficient filling of the focal plane. Critical components are operated at a temperature of 20 K. The noise temperature varies from 50-130 K, including all pixels, across the full band.","PeriodicalId":339267,"journal":{"name":"1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"75","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/22.808962","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 75
Abstract
A new focal plane array for 85-115 GHz is described. This array has 16 pixels, and uses InP MMIC preamplifiers with 40 dB gain, followed by a wideband subharmonic mixer to convert to a 5-20 GHz IF band. A low loss isolator is used to achieve an excellent input match. Square corrugated feed horns are used for efficient filling of the focal plane. Critical components are operated at a temperature of 20 K. The noise temperature varies from 50-130 K, including all pixels, across the full band.
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