IEEE MTT-S International Microwave Symposium digest

A 100 GHz SIS Quasiparticle Mixer with 10 dB Coupled Gain

Antti V. Räisänen, Denis Crété, P. L. Richards, Frances L. Lloyd

Published Jan 1, 1987• 17 citations

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).

DOI: 10.1109/mwsym.1987.1132571

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