Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Design and Implementation of UDC for W-CDMA Dgital Predistortion

W-CDMA Digital Predistortion용 UDC(Up/Down Converter) 설계 및 제작

  • 최민성 (단국대학교 전자컴퓨터공학부) ;
  • 조갑제 (단국대학교 전자컴퓨터공학부) ;
  • 방성일 (단국대학교 전자컴퓨터공학부)
  • Published : 2003.11.01
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Abstract

In this paper, we designed and made up/down converter (UDC) for using W-CDMA digital pre-distortion system which is one of the efficiency enhancement techniques. UDC is required that frequency up(baseband to RF) and down(RF to baseband) of information signals. The focus of the design and PCB layout is to satisfy the linearity of the UDC. We tested that UDC was satisfied specification which is based on 3GPP base stations and repeaters. The ACLR results which are -51.84dBc(Up Converter) and -55.0dBc(Down Converter) at upper 5 MHz offset from center-frequency show that UDC satisfy the 3GPP specification with superior linearity data.

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