The Linearity Analysis of Low Noise Down-Converter for Ka-band UHD Satellite-broadcasting

Ka-대역 UHD 위성방송용 저 잡음 하향변환기의 선형성 분석

  • 목광윤 (경남대학교 정보통신학과) ;
  • 이영철 (경남대학교 정보통신공학과)
  • Received : 2017.02.24
  • Accepted : 2017.04.24
  • Published : 2017.04.30


In this paper, we suggested that a RF-front module of down-converter that represents the lowest noise figure to receive high quality video signals because the attenuation occurs in the atmosphere over 20GHz. By budget analysis of CDR, SFDR and CIP3 of RF-FEM, we also analyzed the parameters and linearity that presents high dynamic range. The total gain of designed Ka-band down-converter is 61.8dBand noise figure is 1.05dB, so gain and noise figures show excellent properties. In the future, the designed RF-FEM will be applied to the Ka-band satellite down-converter for UHD-class video transmission.


Supported by : 한국연구재단


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