Performance of a cryogenic 3 mm Schottky-mixer receiver on the Mets?hovi 14 m radio telescope |
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| Authors: | R?is?nen A. Lehto A. Tiuri M. Lamb J. |
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| Affiliation: | Helsinki University of Technology, Radio Laboratory, Espoo, Finland; |
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| Abstract: | A cooled receiver with some novel features and a noise temperature of 80?140 K double sideband in the frequency range 75?95 GHz has been built for radio astronomical observations. The quasioptical beam switch is followed by a 3 mm Schottky mixer and FET amplifier at 1.4 GHz. For calibration the receiver is provided with a cold reference load within the Dewar. |
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