Title :
A dual-frequency 183/380 GHz receiver for airborne application
Author :
Batelaan, P.D. ; Frerking, M.A. ; Kuiper, T.B.H. ; Pickett, H.M. ; Schaefer, Mark M. ; Zimmermann, Peter ; Luhmann, N.C., Jr.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
4/1/1988 12:00:00 AM
Abstract :
A complete dual-frequency cryogenic heterodyne receiver operating at 183 and 380 GHz is described. The cooled mixers are whisker-contacted GaAs Schottky diodes mounted in reduced-height fundamental-mode waveguide. The local oscillators are Gunn-oscillator-driven multipliers using GaAs varactor diodes as the harmonic generators. Quasi-optical techniques are used extensively for coupling the remote and local oscillator signals into the mixers. The overall system double side-band noise temperature is 320 K for the 183-GHz receiver and 650 K for the 380 GHz receiver
Keywords :
cryogenics; radio receivers; radiometers; radiotelescopes; solid-state microwave circuits; 183 GHz; 380 GHz; EHF; GaAs; Gunn-oscillator-driven multipliers; Kuiper Airborne Observatory; MM-wave operation; Schottky diodes; THF; airborne application; cooled mixers; cryogenic heterodyne receiver; dual-frequency; harmonic generators; local oscillators; millimetre wave type; quasi optical coupling techniques; radioastronomy; radiometer; radiotelescope; reduced-height fundamental-mode waveguide; submm; varactor diodes; whisker-contacted; Frequency; Gallium arsenide; Instruments; Laboratories; Local oscillators; Observatories; Propulsion; Radiometry; Schottky diodes; Temperature;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
