J. Phys. IV France 08 (1998) Pr3-189-Pr3-192
Super low noise cryoelectronic amplifier for radio astronomy and spectroscopy in a 21.0 - 23.0 GHz range with conversion of frequency into 0.5 - 2.5 GHzO.D. Poustylnik, A.A. Maksyasheva, O.P. Golovchenko, E.N. Glukhova, E.N. Zdor, A.V. Onopchenko and Y.I. Kishenko
The State Research Center Fonon, Peremogi Ave. 37, 3240 Kiev, Ukraine
We have realized receiving - amplifying circuits for a frequency range of 21.0-23.0 GHz using frequency conversion down to 1.5 GHz is put. Mixers and ultra low noise transistor amplifiers based on HEMT - transistors cooled down to low temperatures were used. The cryoelectronic ultra low noise transistor amplifier realized (amplification factor Ka = 50 dB and own noise temperature Tn = 45 K) could be used in systems of satellite and space communication, and also for the realization of spectrometric systems.
© EDP Sciences 1998