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

The Institute of Electronics and Information Engineers (대한전자공학회)
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Design and Fabrication of Miniature VCO for Cellular Phone

셀룰러 단말기용 소형 VCO 설계 제작

  • 권원현 (안양대학교 정보통신공학과) ;
  • 황석연 ((주) 스타트텔레콤)
  • Published : 2000.09.01
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Abstract

In this paper, design and fabrication of miniature voltage-controlled oscillator(VCO) is discussed . Based on the two-port circuit analysis technique, VCO for 900MHz cellular mobile phone is designed and circuit parameters are optimized using the circuit simulator. Using the optimized design parameters, miniature VCO with 6${\times}$6${\times}$1.8 mm$^3$(0.065cc) dimensions is fabricated and experimented. Experimental results show that implemented VCO has -3.5 dBm output power level and 45MHz tunung range, respectively, and has -101.5dB/Hz Phase noise performance at 10 KHz frequency offset.

본 논문에서는 900MHz 셀룰러 이동통신 단말기용 소형 전압제어발진기를 설계제작한 후 시험하였다. 2 단자 회로해석 기법을 이용하여 VCO를 설계한 후 회로 설계 tool을 이용하여 최적화하였다. 최적화된 설계 데이터를 이용하여 트랜지스터 및 바랙터 다이오드로 구성된 6×6×1.8 mm³(0.065cc) 크기의 소형 VCO를 제작한 후 시험하였다. 제작된 VCO는 동작주파수 대역 내에서 -3.5 dBm의 출력 및 45MHz 의 Tuning range를 지녔으며, 10 KHz offset에서 -101.5dB/Hz의 우수한 위상잡음 특성을 나타내었다.

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References

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