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http://dx.doi.org/10.5139/JKSAS.2015.43.1.72

Study on Thermal Vacuum Test Result of DCAMP by the Analysis of Derating & Gain Control  

Jin, Byoung-Il (Samsung Thales)
Ko, Hyun-Seok (Agency for Defense Department)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.43, no.1, 2015 , pp. 72-78 More about this Journal
Abstract
Recently, the usage of the satellite is increased more and more in the areas that are communication, weather, marine, optical, radar etc. The functions of the Satellite are evolving from passive transponder to active transponder by the developing of a technology. Advanced countries in satellites install the DCAMP for increase of bandwidth efficiency, improvement of QoS by interference rejection. DCAMP includes many digital components in order to implement functions. Thus, these kinds of active transponders consume much more power compared to passive transponder and then increase the heat. In this paper, we discuss the TVAC test result of DCAMP in EQM(Engineering Qualification Model) level. The paper shows the test results of digital gain control in order to verify DCAMP status under the TVAC test. In addition, the temperature and heat condition of main components from viewpoint of derating will be treated through the official environment test for qualification.
Keywords
Thermal Vacuum; EQM(Engineering Qualification Model); DCAMP(Digital Channel AMPlifier); Derating;
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