The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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A Study on Power Amplifier's Linearity Improvement Using a Compact Microstrip Resonant Cell

Compact Microstrip Resonant Cell을 ol용한 전력증폭기의 선형화 개선에 관한 연구

  • Sohn Hyung-Kil (Department of Electronic Engineering, Soongsil University) ;
  • Yang Seung-In (Department of Electronic Engineering, Soongsil University)
  • 손형길 (숭실대학교 정보통신전자공학부) ;
  • 양승인 (숭실대학교 정보통신전자공학부)
  • Published : 2005.02.01
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Abstract

A new method of power amplifier's linearity improvement using a Compact Microstrip Resonant Cell(CMRC) is proposed. It is found out that a CMRC at the input side gives better performance than that at the output. Tuning lines are used in the input and the output matching network to get the optimum performance. As a result, the 14.77 dB improvement fur the third-order IMD is obtained. And the size of the CMRC is only $17.1\times5.22mm$.

본 논문에서는 Compact Microstrip Resonant Cell을 이용하여 새로운 방법으로 선형성을 개선시킨 전력증폭기를 설계하였다. 전력증폭기의 입력단에 CMRC를 적용하였고, 입력단과 출력단에 각각 Tuning Line을 달아서 조정을 한 결과 기존의 전력증폭기보다 현저한 선형성을 보였다. 그 결과 CMRC를 적용한 전력증폭기는 기존의 전력증폭기보다 3차 IMD가 14.77 dB 만큼 개선되었다. CMRC의 크기는 $17.1\times5.22mm$이다.

Keywords

References

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