Title :
A 100 GHz SIS Quasiparticle Mixer with 10 dB Coupled Gain
Author :
Raisanen, A.V. ; Crete, D.G. ; Richards, P.L. ; Lloyd, F.L.
fDate :
May 9 1975-June 11 1987
Abstract :
We have tested a superconducting qussiparticle mixer for 85-110 GHz which gives much larger coupled gain than has been previously observed. When operated with a negative dynamic resistance of about 2000 Omega, the maximum coupled gain was G/sub M/(DSB)= 12.5 +- 0.5 dB [G/sub M/(SSB)= 9.5 +- 2.5 dB]. The associated mixer noise temperature was 15.9 K (DSB). Large gain was also observed with large positive dynamic resistance, giving the lowest mixer noise temperature of 12.4 K (DSB).
Keywords :
Amplitude modulation; Frequency; Gain; Josephson junctions; Resists; Superconducting device noise; Superconducting devices; Superconducting microwave devices; Temperature; Testing;
Conference_Titel :
Microwave Symposium Digest, 1987 IEEE MTT-S International
Conference_Location :
Palo Alto, CA, USA
DOI :
10.1109/MWSYM.1987.1132571
