Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Design of UWB CMOS Low Noise Amplifier Using Inductor Peaking Technique

인덕터 피킹기법을 이용한 초광대역 CMOS 저잡음 증폭기 설계

  • 성영규 (고려대학교 대학원 전자정보공학과) ;
  • 윤경식 (고려대학교 전자및정보공학과)
  • Received : 2012.07.25
  • Accepted : 2012.08.13
  • Published : 2013.01.31
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Abstract

In this paper, a new circuit topology of an ultra-wideband (UWB) 3.1-10.6GHz CMOS low noise amplifier is presented. The proposed UWB low noise amplifier is designed utilizing RC feedback and LC filter networks which can provide good input impedance matching. In this design, the current-reused topology is adopted to reduce the power consumption and the inductor-peaking technique is applied for the purpose of bandwidth extension. The performance results of this UWB low noise amplifier simulated in $0.18-{\mu}m$ CMOS process technology exhibit a power gain of 14-14.9dB, an input matching of better than -10.8dB, gain flatness of 0.9dB, and a noise figure of 2.7-3.3dB in the frequency range of 3.1-10.6GHz. In addition, the input IP3 is -5dBm and the power consumption is 12.5mW.

본 논문에서는 3.1-10.6GHz 초광대역 CMOS 저잡음 증폭기의 새로운 구조를 소개하였다. 제안된 초광대역 저잡음 증폭기는 입력 임피던스 정합에 RC 피드백과LC 필터회로를 사용하여 설계되었다. 이 설계에 전류 재사용 구조는 전력소비를 줄이기 위해 채택되었으며, 인덕터 피킹 기법은 대역폭을 확장하기 위하여 적용되었다. 이 초광대역 저잡음 증폭기의 특성을 $0.18-{\mu}m$ CMOS 공정기술로 시뮬레이션을 수행한 결과는 3.1-10.6GHz 대역 내에서 전력이득은 14-14.9dB, 입력정합은 -10.8dB이하, 평탄도는 0.9dB, 잡음지수는 2.7-3.3dB인 것을 보여준다. 또한, 입력 IP3는 -5dBm이고, 소비전력은 12.5mW이다.

Keywords

References

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