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A 275–370 GHz Receiver Employing Novel Probe Structure |
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| Authors: | C Risacher V Belitsky V Vassilev I Lapkin and A Pavolotsky |
| Institution: | (1) Group for Advanced Receiver Development (GARD), Radio & Space Science Department with Onsala Space Observatory, Chalmers, University of Technology, Gothenburg, Sweden;(2) Institute of Applied Physics, Russian Academy of Sciences, 46 Ulyanov str., 603950 Nizhny Novgorod, Russia |
| Abstract: | We present the results of the development of a 275–370 GHz, fixed-tuned double sideband (DSB) receiver based on superconductor-insulator-superconductor (SIS) junction mixer. The mixer block uses a full height rectangular waveguide and employs a novel radial-like probe structure with integrated bias-T. The measured uncorrected receiver noise temperature is 30–50 K corresponding to about 2–3 quantum noise across the full frequency band with an IF from 3.8 to 7.6 GHz. The mixer is to be used on the Atacama Pathfinder EXperiment (APEX) submillimeter telescope in Chile. |
| Keywords: | Superconductor-Insulator-Superconductor (SIS) junction radial probe bias-T |
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