Characterization of low-noise quasi-optical SIS mixers for the submillimeter band

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · IEEE Transactions on Microwave Theory and Techniques

DOI:https://doi.org/10.1109/22.508648· OSTI ID:282409

Gaidis, M C; LeDuc, H G; Bin, M; Miller, D; Stern, J A; Zmuidzinas, J ^[1]

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1. California Inst. of Tech., Pasadena, CA (United States)

The authors report on the development of low-noise quasi-optical SIS mixers for the frequency range 400--850 GHz. The mixers utilize twin-slot antennas, two-junction tuning circuits, and Nb-trilayer junctions. Fourier-transform spectrometry has been used to verify that the frequency response of the devices is well predicted by computer simulations. The 400--850 GHz frequency band can be covered with four separate fixed-tuned mixers. They measure uncorrected double-sideband receiver noise temperatures around 5h{nu}/k{sub B} to 700 GHz, and better than 540 K at 808 GHz. These results are among the best reported to date for broadband heterodyne receivers.

• OSTI ID: 282409
• Journal Information: IEEE Transactions on Microwave Theory and Techniques, Journal Name: IEEE Transactions on Microwave Theory and Techniques Journal Issue: 7Pt1 Vol. 44; ISSN IETMAB; ISSN 0018-9480
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
66 PHYSICS
ELECTRONIC EQUIPMENT
HETERODYNE RECEIVERS
NIOBIUM
PERFORMANCE
RESPONSE FUNCTIONS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING JUNCTIONS