Title :
The Olympus Radiometer for 12/20/30 GHz at Eindhoven University of Technology
Author :
Dijk, J. ; van Gastel, A.H. ; Stal, B.
Author_Institution :
Speaker, Eindhoven University of Technology, Telecommunications Division, EH 11.03, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
Abstract :
The EUT radiometer system has one antenna of a beam waveguide type consisting of a multifrequency scalar horn and four reflectors. The 20/30 GHz radiometers operate according to the Dicke principle, the 12 GHz radiometer follows the total power principle. The temperature of the electronic circuits has been kept constant at a temperature of 310 ± 0.01 K.
Keywords :
Antenna feeds; Land surface temperature; Multifrequency antennas; Noise figure; Noise measurement; Polarization; Radiometry; Reflector antennas; Temperature distribution; Temperature measurement;
Conference_Titel :
Microwave Conference, 1991. 21st European
Conference_Location :
Stuttgart, Germany
DOI :
10.1109/EUMA.1991.336472
