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

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Design of VGA for MB-OFDM UWB

CMOS 0.18 μm 공정을 이용한 MB-OFDM UWB용 VGA 설계

  • 이승식 (한국전자통신연구원 무선홈네트워크연구팀) ;
  • 박봉혁 (한국전자통신연구원 무선홈네트워크연구팀) ;
  • 김재영 (한국전자통신연구원 무선홈네트워크연구팀) ;
  • 최상성 (한국전자통신연구원 무선홈네트워크연구팀)
  • Published : 2005.02.01
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Abstract

In this paper, we have proposed VGA fur MB-OFDM UWB application using $CMOS\;0.18\;{\mu}m$ technique. The proposed VGA can vary power gain from 45 dB to -6 dB and 3 dB band width is more than 264 MHz. It has 3-stage cascade structure and DC offset cancellation. It consumes less, than 4 mA for 1.8 V bias voltage.

본 논문은 $CMOS\;0.18\;{\mu}m$ 고정을 이용한 MB-OFDM UWB용 VGA를 설계하였다. 제 안된 VGA는 $-6\~45dB$의 가변이득 조정이 가능하고 3 dB Bandwidth는 필요 성능인 264 MHz를 만족하였다. 2단 연속 구조인 증폭부와 DC 성분을 제거하는 DC offset canceller로 구성되어 있고 1.8 V 바이어스에 4 mA 소비 전류를 만족하였다.

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References

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