A broad-band low-noise SIS receiver for submillimeter astronomy
- 1 December 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Microwave Theory and Techniques
- Vol. 36 (12) , 1720-1726
- https://doi.org/10.1109/22.17405
Abstract
A quasi-optical heterodyne receiver using a Pb-alloy superconductor-insulator-superconductor (SIS) tunnel junction as the detector and a planar logarithmic spiral antenna for the RF coupling is described, and its performance is compared with the predicted performance of a theoretical model. Noise measurements were made in the laboratory at frequencies between 115 GHz and 761 GHz, yielding double-sideband noise temperatures ranging from 33 K to 1100 K. The receiver has also been used for astronomical spectroscopy on the Caltech Submillimeter Observatory (Mauna Kea, Hawaii) at 115, 230, 345, and 492 GHz.Keywords
This publication has 24 references indexed in Scilit:
- Frequency independent antennasPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Focusing properties of small lensesInternational Journal of Infrared and Millimeter Waves, 1986
- Low-noise 460 GHz waveguide Schottky mixer radiometer for radioastronomyElectronics Letters, 1986
- 85--115-GHz Receivers for Radio AstronomyIEEE Transactions on Microwave Theory and Techniques, 1985
- Ultra-Low-Noise 1.2- to 1.7-GHz Cooled GaAsFET AmplifiersIEEE Transactions on Microwave Theory and Techniques, 1982
- Low-noise 115-GHz mixing in superconducting oxide-barrier tunnel junctionsApplied Physics Letters, 1979
- Stencil technique for the preparation of thin-film Josephson devicesJournal of Vacuum Science and Technology, 1978
- Offset masks for lift-off photoprocessingApplied Physics Letters, 1977
- Optical Constants of Far Infrared Materials 2: Crystalline SolidsApplied Optics, 1973
- The equiangular spiral antennaIEEE Transactions on Antennas and Propagation, 1959