کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1590492 | 1002300 | 2019 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
SIS mixers
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: SIS mixers SIS mixers](/preview/png/1590492.png)
چکیده انگلیسی
Small area superconducting thin film tunnel junctions have properties which make them suitable for high frequency (â 100 GH) heterodyne receivers. Both pair and single quasiparticle tunneling is present in the devices, but pair tunneling is found to be excessively noisy, whereas quasiparticle tunneling apparently gives HOPE of near quantum noise limited performance. The physical effect involved is photon assisted quasiparticle tunneling first observed by Dayem and Martin. A recent theory by Tucker has allowed a good understanding of many aspects of the phenomenon so that considerable HOPE exists for successful application of SIS mixer devices in fields such as millimeter and submillimeterwave astronomy. Some of the laboratory experiments and receiver construction efforts are reviewed in this article.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B+C - Volumes 109â110, Part 3, July 1982, Pages 2010-2019
Journal: Physica B+C - Volumes 109â110, Part 3, July 1982, Pages 2010-2019
نویسندگان
T.G. Phillips, G.J. Dolan,