DocumentCode
2564092
Title
A performance evaluation of an RF switching radiometer
Author
Byeong Kwon Park ; Jeong Hwan Kim ; Ki Chai Kim
Author_Institution
Korea Stand. Res. Inst., Taejon, South Korea
fYear
1990
fDate
11-14 June 1990
Firstpage
400
Lastpage
401
Abstract
The authors present a performance evaluation of an RF switching radiometer used as a noise comparator at X-band. The sensitivity, thermal stability, and noise source stability are examined. The temperature stability was improved by circulating water on the critical components. The system is sufficiently sensitive and stable for the calibration of noise sources. The precision of the noise temperature measurement is estimated within 0.01 dB using a gas-discharge standard noise source.<>
Keywords
calibration; comparators (circuits); discharges (electric); microwave measurement; noise generators; radiometers; stability; RF switching radiometer; X-band; calibration; circulating water; gas-discharge standard noise source; noise comparator; noise generator; noise source stability; noise temperature measurement; performance evaluation; sensitivity; temperature stability; thermal stability; Attenuators; Blades; Discharges; Noise measurement; Radio frequency; Radiometry; Stability; Temperature control; Temperature distribution; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements, 1990. CPEM '90 Digest., Conference on
Conference_Location
Ottawa, Ontario, Canada
Type
conf
DOI
10.1109/CPEM.1990.110078
Filename
110078
Link To Document