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Cherednichenko, Sergey; Drakinskiy, Vladimir; Berg, Therese; Kollberg, Erik L.; Angelov, Iltcho |
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The direct detection effect in the hot-electron bolometer mixer sensitivity calibration |
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2007 |
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IEEE Trans. Microw. Theory Techn. |
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55 |
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3 |
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504-510 |
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HEB, mixer, direct detection effect |
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0018-9480 |
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RPLAB @ lobanovyury @ |
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555 |
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Semenov, Alexei D.; Richter, Heiko; Hubers, Heinz-Wilhelm; Gunther, Burghardt.; Smirnov, Andrey; Il'in, Konstantin S.; Siegel, Michael; Karamarkovic, Jugoslav P. |
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Title |
Terahertz performance of integrated lens antennas with a hot-electron bolometer |
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Journal Article |
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2007 |
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IEEE Trans. Microw. Theory Techn. |
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55 |
Issue |
2 |
Pages |
239-247 |
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HEB, lens antenna |
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0018-9480 |
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538 |
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Meledin, Denis; Pavolotsky, Alexey; Desmaris, Vincent.; Lapkin, Igor; Risacher, Christophe; Perez, Victor; Henke, Douglas; Nystrom, Olle; Sundin, Erik; Dochev, Dimitar; Pantaleev, Miroslav; Fredrixon, Mathias; Strandberg, Magnus; Voronov, Boris; Goltsman, Gregory; Belitsky, Victor |
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Title |
A 1.3-THz balanced waveguide HEB mixer for the APEX telescope |
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2009 |
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IEEE Trans. Microw. Theory Techn. |
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57 |
Issue |
1 |
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89-98 |
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HEB, mixer, waveguide, balanced, NbN |
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In this paper, we report about the development, fabrication, and characterization of a balanced waveguide hot electron bolometer (HEB) receiver for the Atacama Pathfinder EXperiment telescope covering the frequency band of 1.25–1.39 THz. The receiver uses a quadrature balanced scheme and two HEB mixers, fabricated from 4- to 5-nm-thick NbN film deposited on crystalline quartz substrate with an MgO buffer layer in between. We employed a novel micromachining method to produce all-metal waveguide parts at submicrometer accuracy (the main-mode waveguide dimensions are 90×180 μm). We present details on the mixer design and measurement results, including receiver noise performance, stability and “first-light†at the telescope site. The receiver yields a double-sideband noise temperature averaged over the RF band below 1200 K, and outstanding stability with a spectroscopic Allan time more than 200 s. |
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RPLAB @ lobanovyury @ |
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554 |
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Kerr, A. R. |
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Some fundamental and practical limits on broadband matching tocapacitive devices, and the implications for SIS mixer design |
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Year |
1995 |
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IEEE Trans. Microw. Theory Techn. |
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43 |
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1 |
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2-13 |
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256 |
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