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Cherednichenko, S.; Kollberg, E.; Angelov, I.; Drakinskiy, V.; Berg, T.; Merkel, H. |
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Title |
Effect of the direct detection effect on the HEB receiver sensitivity calibration |
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2005 |
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Proc. 16th Int. Symp. Space Terahertz Technol. |
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235-239 |
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HEB, mixer, direct detection effect |
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Abstract |
We analyze the scale of the HEB receiver sensitivity calibration error caused by the so called “direct detection effect”. The effect comes from changing of the HEB parameters when whey face the calibration loads of different temperatures. We found that for HIFI Band 6 mixers (Herschel Space Observatory) the noise temperature error is of the order of 8% for 300K/77K loads (lab receiver) and 2.5% for 100K/10K loads (in HIFI). Using different approach we also predict that with an isolator between the mixer and the low noise amplifiers the error can be much smaller. |
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Göteborg, Sweden |
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360 |
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Belitsky, V. Yu.; Kollberg, E. L. |
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Title |
Tuning circuit for NbN SIS mixer |
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1996 |
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Proc. 7th Int. Symp. Space Terahertz Technol. |
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234 |
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Charlottesville, Virginia, USA |
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264 |
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Merkel, H.; Khosropanah, P.; Yagubov, P.; Kollberg, E. |
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Title |
A hot spot mixer model for superconducting phonone–cooled HEB far above the quasipartical band gap |
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1999 |
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Proc. 10th Int. Symp. Space Terahertz Technol. |
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592-606 |
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Charlottesville, Virginia |
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292 |
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Kroug, M.; Cherednichenko, S.; Choumas, M.; Merkel, H.; Kollberg, E.; Hübers, H.-W.; Richter, H.; Loudkov, D.; Voronov, B.; Gol'Tsman, G. |
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Title |
HEB quasi-optical heterodyne receiver for THz frequencies |
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2001 |
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Proc. 12th Int. Symp. Space Terahertz Technol. |
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244-252 |
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HEB mixer, NbN, MgO, conversion gain bandwidth, noise temperature |
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San Diego, CA, USA |
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319 |
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Merkel, H. F.; Khosropanah, P.; Sigfrid Yngvesson, K.; Cherednichenko, S.; Kroug, M.; Adam, A.; Kollberg, E. |
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Title |
An active zone small signal model for hot-electron bolometric mixers |
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2001 |
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Proc. 12th Int. Symp. Space Terahertz Technol. |
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55 |
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San Diego, CA, USA |
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RPLAB @ s @ losses_in_contacts_merkel |
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320 |
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