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http://dx.doi.org/10.7236/JIWIT.2012.12.3.71

Fabrication of Millimeter Wave Radiometer  

Kim, Soon-Koo (Dept. of Applied Physics & Electronics, Sangji University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.12, no.3, 2012 , pp. 71-74 More about this Journal
Abstract
We have manufactured a close range Dicke type radiometer which consists of two stage low noise amplifier and diode detector. Frequency range of this system is 35 GHz. And this is used for studying temperature calibration on specific objects. We have present millimeter-wave radiometer's thermal calibration method and its characteristics. From absolute temperature 299K to 309K, in proportion to increase temperature, output voltages are linearly increased. In this case, undefined objects can be measured thermal noise temperature relatively. Overall from absolute temperature 214K to 309K, we have obtained relation of temperature and output voltage;V= 0.03601K - 10.70517.
Keywords
Dicke type radiometer; Millimeter-wave radiometer; Thermal noise; Calibration;
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