Study on SIS Mixers for "ALMA" Band-10
S. V. Shitov, Oleg V. Koryukin, Andrey V. Uvarov +7 more
This paper studies superconductor insulator superconductor (SIS) mixers for ALMA Band-10 project. The possible scheme of the ALMA Band-10 cartridge with balanced lens-antenna mixers is presented. The new balanced full-height waveguide SIS mixer comprises two equal mixer chips fabricated on quartz substrates. Each chip contains an RF circuit with hybrid twin-SIS junction NbTiN/Nb-AlOx-Nb/Al. The preliminary experimental study of Band-10 receiver with a double-slot antenna SIS mixer mounted with a 10-mm immersion silicon lens is done to define an optimum layout of the tuning circuit and a combination of materials leading to the best performance of the SIS mixer.
International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves•Jun 1, 2007•0 citations