Title of article :
Characterization of a total power radiometer
Author/Authors :
CELEP, Murat Technological and Scientific Research Council of Turkey - National Metrology Institute, TURKEY , YARAN, Şenel Technological and Scientific Research Council of Turkey - National Metrology Institute, TURKEY , GÜLMEZ, Yakup Technological and Scientific Research Council of Turkey - National Metrology Institute, TURKEY , DOLMA, Arif Kocaeli University - Department of Electronics and Communication Engineering, TURKEY
Abstract :
The performance parameters of a total power radiometer designed as a noise measurement system for the frequency range of 12-18 GHz were investigated. The total power radiometer included a low-noise radio frequency section, a narrow-band intermediate frequency section, an average power detector, and a symmetric microwave switch. The radiometer’s stability versus time was 0.343 × 10^−5 mW/h and its stability against temperature fluctuation was 0.0035 mW/K. The temperature fluctuation of the radiometer was less than 4 mK. We proved that there was no need for active temperature control to obtain stable radiometer gain.
Keywords :
Microwave noise , noise measurement , total power radiometer , calibration
Journal title :
Turkish Journal of Electrical Engineering and Computer Sciences
Journal title :
Turkish Journal of Electrical Engineering and Computer Sciences
