PT Unknown
AU Maslennikov, SN
   Morozov, DV
   Ozhegov, RV
   Smirnov, KV
   Okunev, OV
   Gol’tsman, GN
TI Imaging system for submillimeter wave range based on AlGaAs/GaAs hot electron bolometer mixers
SE Proc. 5-th MSMW
PY 2004
BP 558
EP 560
VL 2
DI 10.1109/MSMW.2004.1346010
DE AlGaAs/GaAs HEB mixers
AB Electromagnetic radiation of the submillimeter (SMM) range is dispersed and absorbed significantly less than infrared (IR) radiation when passing through different objects. That is the reason for the development of an SMM imaging system. In this paper, we discuss the design of an SMM heterodyne imager, based on a matrix of AlGaAs/GaAs heterostructure hot electron bolometer mixers (HEB) with relatively high (about 77 K) operating temperature. The predicted double side band (DSB) noise temperature is about 1000 K and optimal local oscillator (LO) power is about 1 /spl mu/W for such mixers, which seems to be quite prospective for an SMM heterodyne imager.
ER