Josephson effect gain and noise in SIS mixers

Details Josephson effect gain and noise in SIS mixers Josephson effect gain and noise in SIS mixers

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992itmtt..40..820w&link_type=abstract

(NASA, International Symposium on Space Terahertz Technology, 2nd, Pasadena, CA, Mar. 3, 4, 1991) IEEE Transactions on Microwave

Astronomy and Astrophysics

Astronomy

2

High Gain, Josephson Junctions, Mixing Circuits, Noise Measurement, Sis (Superconductors), Tunnel Diodes, Black Body Radiation, Noise Temperature, Radio Astronomy, Spaceborne Astronomy, Superhigh Frequencies

Scientific paper

Superconducting tunnel diode (SIS) mixers are used for radio astronomy from 100 to 500 GHz. They are being considered for NASA spaceborne astronomy at frequencies near 1000 GHz. Measurements of gain and noise in SIS mixers at 230 and 492 GHz are reported. Relatively high gain and noise associated with Josephson currents are measured that have not been previously reported. These measurements show that Josephson currents are increasingly important as operating frequencies are raised. The techniques used to make these measurements are discussed. Measurements made with hot and cold black-bodies are shown to be inaccurate at high frequencies.

Affiliated with

Also associated with

No associations

Rating

Josephson effect gain and noise in SIS mixers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Josephson effect gain and noise in SIS mixers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Josephson effect gain and noise in SIS mixers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1517909