Since several years waveguide and planar antenna SIS-mixers for space applications are developed at SRON in orderof ESA. Recent results show excellent mixer performance up to frequencies above the superconducting gap of Nb.Goal is the development of a 1THz-mixer. Best results show a receiver noise temperature of Taw=400K at 720GHz incase of the waveguide mixer and TÃ¢â‚¬Å¾Ã¢â‚¬Å¾=200K at 490GHz for the double dipole planar antenna mixer. We will presentthe status in the development of SIS-junctions, integrated tuning network, mixers and mounts.
"SIS-mixer development at SRON", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21043Z (30 August 1993); doi: 10.1117/12.2298575; https://doi.org/10.1117/12.2298575