PT Journal
AU Morozov, DV
   Smirnov, KV
   Smirnov, AV
   Lyakhov, VA
   Goltsman, GN
TI A millimeter-submillimeter phonon-cooled hot-electron bolometer mixer based on two-dimensional electron gas in an AlGaAs/GaAs heterostructure
SO Semicond.
JI Semicond.
PY 2005
BP 1082
EP 1086
VL 39
IS 9
DI 10.1134/1.2042603
DE 2D electron gas; AlGaAs/GaAs heterostructures; mixers
AB Experimental results obtained by studying the main characteristics of a millimeter-submillimeter wave mixer based on the hot-electron effect in a two-dimensional electron gas in a AlGaAs/GaAs heterostructure with a phonon-scattering cooling mechanism for charge carriers are reported. The gain bandwidth of the mixer is 4 GHz, the internal conversion losses are 13 dB, and the optimum local-oscillator power is 0.5 μW (for a mixer area of 1 μm2). It is shown that a millimeter-submillimeter-wave receiver with a noise temperature of 1900 K can be developed on the basis of a AlGaAs/GaAs mixer. This mixer also appears to be promising for use in array receiver elements.
ER