A low noise receiver for millimeter and submillimeter wavelengths |
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| Authors: | M J Wengler D P Woody R E Miller T G Phillips |
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| Affiliation: | 1. Calfifornia Institute of Technology, 91125, Pasadena, California
2. AT&T Bell Laboratories, 07974, Murray Hill, New Jersey
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| Abstract: | A broadband, low noise heterodyne receiver, suitable for astronomical use, has been built using a Pb alloy superconducting tunnel junction (SIS). The RF coupling is quasioptical via a bowtie antenna on a quartz lens and is accomplished without any tuning elements. In this preliminary version the double sideband receiver noise temperature rises from 205 K at 116 GHz to 375 K at 349 Ghz, and to 815 K at 466 GHz. This is the most versatile and sensitive receiver yet reported for sub-mm wavelengths. |
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