Noise temperature and IF bandwidth of a 530-GHz heterodyne receiver employing a diffusion-cooled superconducting hot-electron mixer

Anders J. Skalare; William R. McGrath; Bruce Bumble; Henry G. LeDuc; P. J. Burke; A. A. Verheijen; Daniel E. Prober

doi:10.1117/12.224230

13 October 1995 Noise temperature and IF bandwidth of a 530-GHz heterodyne receiver employing a diffusion-cooled superconducting hot-electron mixer

Anders J. Skalare, William R. McGrath, Bruce Bumble, Henry G. LeDuc, P. J. Burke, A. A. Verheijen, Daniel E. Prober

Author Affiliations +

Proceedings Volume 2558, Millimeter and Submillimeter Waves II; (1995) https://doi.org/10.1117/12.224230
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

We report on the first heterodyne measurements with a diffusion-cooled hot-electron bolometer mixer in the submillimeter wave band, using a waveguide mixer cooled to 2.2 K. The best receiver noise temperature at a local oscillator frequency of 533 GHz and an intermediate frequency of 1.4 GHz was 650 K (double sideband). The 3 dB IF roll-off frequency was around 1.7 to 1.9 GHz, with a weak dependence on the device bias conditions.

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Anders J. Skalare, William R. McGrath, Bruce Bumble, Henry G. LeDuc, P. J. Burke, A. A. Verheijen, and Daniel E. Prober "Noise temperature and IF bandwidth of a 530-GHz heterodyne receiver employing a diffusion-cooled superconducting hot-electron mixer", Proc. SPIE 2558, Millimeter and Submillimeter Waves II, (13 October 1995); https://doi.org/10.1117/12.224230

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