A 5.8 GHz SiGe Up-Conversion Mixer with On-Chip Active Baluns for DSRC Transmitter

DSRC 송신기를 위한 능동발룬 내장형 5.8 GHz SiGe 상향믹서 설계 및 제작

  • 이상흥 (한국전자통신연구원 기반기술연구소 고속집적회로연구부 SiGe소자팀) ;
  • 이자열 (한국전자통신연구원 기반기술연구소 고속집적회로연구부 SiGe소자팀) ;
  • 김상훈 (한국전자통신연구원 기반기술연구소 고속집적회로연구부 SiGe소자팀) ;
  • 배현철 (한국전자통신연구원 기반기술연구소 고속집적회로연구부 SiGe소자팀) ;
  • 강진영 (한국전자통신연구원 기반기술연구소 고속집적회로연구부 SiGe소자팀) ;
  • 김보우 (한국전자통신연구원 기반기술연구소 고속집적회로연구부)
  • Published : 2005.04.01

Abstract

DSRC provides high speed radio link between Road Side Equipment and On-Board Equipment within the narrow communication area. In this paper, a 5.8 GHz up-conversion mixer for DSRC communication system was designed and fabricated using 0.8 m SiGe HBT process technology and IF/LO/RF matching circuits, IF/LO input balun circuits, and RP output balun circuit were all integrated on chip. The chip size of fabricated mixer was $2.7mm\times1.6mm$ and the measured performance was 3.5 dB conversion gain, -12.5 dBm output IP3, 42 dB LO to If isolation, 38 dB LO to RF isolation, current consumption of 29 mA for 3.0 V supply voltage.

근거리무선통신 (Dedicated Short Range Communication, DSRC)은 지능형교통시스템 서비스 제공을 위한 통신 수단으로, 수 미터에서 수백 미터인 근거리 영역의 노변장치(Road Side Equipment, RSE)와 차량탑재장치(On-Board Equipment, OBE)와의 양방향 고속통신을 수행하는 통신시스템이다. 본 논문에서는 SiGe HBT 공정을 이용하여 근거리무선통신 송신기용 5.8 GHz 상향믹서를 설계 및 제작하였다. 설계된 상향믹서는 믹서코어 회로와 더불어 IF/LO/RF 입출력 정합 회로, IF/LO 입력 발룬 회로와 RF 출력 발룬 회로가 단일칩으로 구현되었다. 제작된 상향믹서는 $2.7 mm\times1.6mm$의 크기를 가지며, 3.5 dB의 전력변환이득과 -12.5 dBm의 OIP3, 42 dB의 LO to E isolation, 38 dB의 LO to RF isolation, 3.0 V의 공급전압 하에서 29 mA의 전류소모로 측정되었다.

Keywords

References

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