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Title | ГОСТ 2.125-2008 ЕСКД Правила выполнения эскизных конструкторских документов | Type | Miscellaneous | ||
Year | 2008 | Publication | Abbreviated Journal | ||
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Call Number | RPLAB @ kostochkin @ | Serial | 934 | ||
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Author | Meledin D.; Desmaris V.; Ferm S.-E.; Fredrixon M.; Henke D.; Lapkin I.; Nyström O.; Pantaleev M.; Pavolotsky A.; Strandberg M.; Sundin E.; Belitsky V. | ||||
Title | APEX Band T2: A 1.25 – 1.39 THz Waveguide Balanced HEB Receiver | Type | Journal Article | ||
Year | 2008 | Publication | Abbreviated Journal | ||
Volume | Issue | Pages | 181-185 | ||
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Abstract | A waveguide 1.25–1.39 THz Hot Electron Bolometer (HEB) balanced receiver was successfully developed, characterized and installed at the Atacama Pathfinder EXperiment (APEX) telescope. The receiver employs a quadrature balanced scheme using a waveguide 90-degree 3 dB RF hybrid, HEB mixers and a 180-degree IF hybrid. The HEB mixers are based on ultrathin NbN film deposited on crystalline quartz with a MgO buffer layer. Integrated into the multi-channel APEX facility receiver (SHeFI), the results presented here demonstrate exceptional performance; a receiver noise temperature of 1000 K measured at the telescope at the center of the receiver IF band 2-4 GHz, and at an LO frequency of 1294 GHz. Stability of the receiver is fully in line with the SIS mixer bands of the SHeFI, and gives a spectroscopic Allan time of more than 200 s with a noise bandwidth of 1 MHz. | ||||
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Call Number | RPLAB @ atomics90 @ | Serial | 974 | ||
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