Proceedings of the First European Workshop on Low Temperature Electronics
J. Phys. IV France 04 (1994) C6-267-C6-272
A 350 to 700 GHz open structure SIS receiver for submm. radioastronomyH. Rothermel1, K.H. Gundlach2 and M. Voss2
1 MPI f. extraterrestrische Physik, Postfach 1603, D-85740 Garching, Germany
2 IRAM, 38406 Saint Martin d'Heres, France
An open structure SIS receiver, used already for astronomy at 345 GHz was tested at 470 and 690 GHz. Receiver noise temperatures considerably better than those of standard systems based on Schottky diode mixers were accomplished. A specific merrit of this system is the option to change the range of input frequencies by simply mounting a specific mixer element in a standard mixer block and by exchange of the output horn at the solid state local ocillator.
© EDP Sciences 1994