WebbA Planar SIS Receiver with Logperiodic Antenna for Submillimeter Wavelengths 661 F. Schafer, E. Kreysa, T. Lehnert, K.H. Gundlach Numerical and Scale Modelling of a Broadband Waveguide-to-Microstrip Coupling Structure for a 100 GHz SIS Mixer 666 G.F. Delgado, J.F. Johansson, N.D. Whyborn Integration of SIS Mixers, Superconducting … Webb1 juni 1996 · Design details are given for a 205-270 GHz fixed-tuned SIS receiver in which the SIS mixer and HEMT IF amplifier are integrated into a single compact unit. The mixer and IF amplifier are connected with an inductor which provides the reactive part of the optimum input impedance for the HEMT.
Experimental Investigation of a Broadband High-Temperature
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WebbThe arrows point to the quasi-particle steps (photon assisted tunneling) and the first Shapiro steps for four FFO frequencies, 260, 350, 530 and 665 GHz. Source publication … Webb28 okt. 2024 · The sharp nonlinearity in the tunneling current of the SIS junction is used for the mixer operation; this nonlinearity results from a single-electron tunneling process between two superconductors separated by a very thin oxide insulating layer. WebbThe SIS mixers for ALMA bands 4, 8 and 10 are developed and fabricated in a clean room at ATC by the SIS group. SIS device production and micro-fabrication unit The SIS devices are fabricated on a quartz wafer in the ultra clean environment shown on the left and diced into chips to be mounted in a mixer block as shown by photographs in the center. flare toys