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The Design of High Cain Channel Amplifier for Terrestial Repeater of Digital Satellite Broadcasting  

이강훈 (경남대학교 대학원 정보통신공학과)
이영철 (경남대학교 공과대학 정보통신공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.7, no.3, 2003 , pp. 485-491 More about this Journal
Abstract
In this paper, We designed the multi-stage amplifier having high gain/low noise characteristics for terrestial repeater of direct digital satellite broadcasting system. In the design the amplifier, we optimized the parameters to have the stable operation between gain, noise figure and stability. The first stage of amplifier can be specified low noise impedance matching, 2nd stage to 5th stage show constant gain and stable operation and final stage of amplifier shows high gain impedance matching. As a result of experiment at the frequency of digital satellite terrestial, show 68dB gain under 2,4dB noise figure and 63dB dynamic range in the 11.7GHz-12.7GHz frequency range, it is a good agreement of communication channel amplifier requirements for satellite terrestial repeater.
Keywords
마이크로파 다단증폭기;저잡음증폭기;위성리피터증폭기;
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