대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

Limitter를 이용한 증폭기의 성능개선

Performance enhancement of hybrid power amplifier using limitter

  • 이상수 (단국대학교 전자컴퓨터공학과) ;
  • 이석희 (단국대학교 전자컴퓨터공학과) ;
  • 방성일 (단국대학교 전자컴퓨터공학과)
  • Lee, Sang-Soo (School of Electronics and Computer Engineering Dankook University) ;
  • Lee, Suk-Hui (School of Electronics and Computer Engineering Dankook University) ;
  • Bang, Sung-Il (School of Electronics and Computer Engineering Dankook University)
  • 발행 : 2007.07.11
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초록

In this paper, we design hybrid limitter balanced(HLB) power amplifier with W-CDMA signal input. Balanced power amplifier is important component that decide efficiency in communication system. General balanced power amplifier has low efficiency and high distortion characteristics. Therefore, we embodied two path with limitter that amplitude path had high efficiency amplifier using limitter and phase path had high linear amplifier to improve such problem.

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