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Финкель, М. И.; Масленников, С. Н.; Гольцман, Г. Н. |
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Концепция приёмного комплекса космического радиотелескопа «Миллиметрон» |
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2007 |
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Известия высших учебных заведений. Радиофизика |
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50 |
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10-11 |
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924-934 |
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russian |
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RPLAB @ s @ mix_review_2007_rus |
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410 |
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Kardashev, N. S.; Andreyanov, V. V.; Gromov, V. D.; Buyakas, V. I.; Gvamichava, A. S.; Kotik, A. N.; Kurt, V. G.; Lazareva, G. S.; Mironova, E. N.; Myshonkova, N. V.; Slysh, V. I.; Trubnikov, A. G.; Vinogradov, I. S.; Troitsky, V. F.; Puryaev, D. T.; Usyukin, V. I. |
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Title |
The Millimetron project |
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Conference Article |
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2007 |
Publication |
Radioastronomical Tools and Techniques |
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111 |
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Kardashev, N. S.; Dagkesamanskii, S. A. |
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RPLAB @ s @ MILLIMETRON_Krdashev_2007 |
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398 |
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Author |
Buyakas, V. I.; Rybakova, A. G. |
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Title |
The Millimetron project: the unit of high-precision deployment of a space mirror |
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Conference Article |
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Year |
2007 |
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Radioastronomical Tools and Techniques |
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127 |
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Kardashev, N. S.; Dagkesamanskii, S. A. |
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RPLAB @ s @ MILLIMETRON_Buyakas_2007 |
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399 |
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Torgashin, M. Yu.; Koshelets, V. P.; Dmitriev, P. N.; Ermakov, A. B.; Filippenko, L. V.; Yagoubov, P. A. |
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Title |
Superconducting integrated receivers based on Nb-AlN-NbN circuits |
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Journal Article |
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2007 |
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IEEE Trans. Appl. Supercond. |
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17 |
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2 |
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379-382 |
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RPLAB @ s @ mix_SIR_ieee_trans_2007 |
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406 |
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Author |
Khosropanah, P.; Gao, J. R.; Laauwen, W. M.; Hajenius, M; Klapwijk, T. M. |
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Title |
Low noise NbN hot electron bolometer mixer at 4.3 THz |
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Journal Article |
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Year |
2007 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
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91 |
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221111 (1 to 3) |
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NbN HEB mixers, NbN, contacts cleaning |
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Abstract |
We have studied the sensitivity of a superconducting NbN hot electron bolometer mixer integrated with a spiral antenna at 4.3 THz. Using hot/cold blackbody loads and a beam splitter all in vacuum, we measured a double sideband receiver noise temperature of 1300 K at the optimum local oscillator (LO) power of 330 nW, which is about 12 times the quantum noise (hnu/2kB). Our result indicates that there is no sign of degradation of the mixing process at the superterahertz frequencies. Moreover, a measurement method is introduced which allows us for an accurate determination of the sensitivity despite LO power fluctuations. |
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584 |
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