Title :
Calibration procedure of a microwave total-power radiometer
Author :
Al-Ansari, K. ; Garcia, P. ; Riera, J.M. ; Benarroch, A. ; Fernandez, D. ; Fernandez, L.
Author_Institution :
ETSI Telecomunicacion, Univ. Politecnica de Madrid, Spain
fDate :
3/1/2002 12:00:00 AM
Abstract :
A total-power radiometer built in combination with a beacon receiver is being used for low-level attenuation measurements. This experimental receiver was built to measure atmospheric propagation impairments, using the ITALSAT satellite 50 GHz signal. The radiometer is mainly used to provide the reference level for the beacon measurements. Its precision should be better than /spl plusmn/3 K, for low attenuation levels, in order to have 0.1 dB accuracy in the attenuation measurements. A suitable calibration procedure is described.
Keywords :
calibration; millimetre wave measurement; millimetre wave propagation; radiometers; 50 GHz; EHF; ITALSAT satellite signal; MM-wave propagation; MM-wave radiometer; MM-wave radiometry; atmospheric propagation impairments; beacon measurements; beacon receiver; calibration procedure; low-level attenuation measurements; microwave radiometer; precision; reference level; total-power radiometer; Atmospheric measurements; Atmospheric waves; Attenuation measurement; Calibration; Microwave propagation; Microwave radiometry; Radio frequency; Receiving antennas; Satellite broadcasting; Temperature sensors;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/7260.989862
