Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Realization of High Linear Doherty Amplifier Using PBG

PBG 구조를 이용한 고선형성 Doherty 전력 증폭기 구현에 관한 연구

  • Lee Sangman (School of Electronic Engineering Soongsil University) ;
  • Seo Chulhun (School of Electronic Engineering Soongsil University)
  • 이상만 (숭실대학교 정보통신공학부) ;
  • 서철헌 (숭실대학교 정보통신공학부)
  • Published : 2005.02.01
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Abstract

In this paper, the high linear Doherty amplifier has been realized by employing the PBG(Photonic Band Gap) structure. The PBG structure has been employed on the output matching network of the power amplifier. The proposed Doherty amplifier has been improved in PAE and IMD. The PAE has been $36.4\%$ and the IMD has been -24.5 dBc, respectively.

본 논문에서는 PBG 구조를 이용하여 Doherty 증폭기의 선형성을 개선하였다. PBG 구조를 출력 정합회로에 구현하였으며, Doherty 증폭기의 호율 뿐 아니라 선형성을 개선 할 수 있었다. 제안된 PBG 구조를 이용한 Doherty 증폭기는 PAE $36.4\%$, IMD -24.5 dBc 였으며, IMD 측면에서 3 dBc, PAE 측면에서 약 $3\%$ 정도 개선되었다.

Keywords

References

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