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

  • 제24권2호
  • /
  • Pages.325-328
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  • 2020
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  • 2234-4772(pISSN)
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  • 2288-4165(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
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저 가격 0.18-㎛ 혼성신호 CMOS공정에 기반한 WSN용 2.4-GHz 밴드 VCO설계

Low cost 2.4-GHz VCO design in 0.18-㎛ Mixed-signal CMOS Process for WSN applications

  • Jhon, Heesauk (Department of Electronics, Information and Communication, Mokpo National University) ;
  • An, Chang-Ho (Department of Digital Electronics, Dealim University College) ;
  • Jung, Youngho (Department of Electronic and Electrical Engineering, Daegu University)
  • 투고 : 2020.02.10
  • 심사 : 2020.02.14
  • 발행 : 2020.02.29
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초록

This paper demonstrated a voltage-controlled oscillator (VCO) using cost-effective (1-poly 6-metal) mixed signal standard CMOS process. To have the high-quality factor inductor in LC resonator with thin metal thickness, patterned-ground shields (PGS) was adopted under the spiral to effectively reduce the ac current of low resistive Si substrate. And, because of thin top-metal compared with that of RF option (2 ㎛), we make electrically connect between the top metal (M6) and the next metal (M5) by great number of via array along the metal traces. The circuit operated from 2.48 GHz to 2.62 GHz tuned by accumulation-mode varactor device. And the measured phase noise of LC VCO has -123.7 dBc/Hz at 1MHz offset at 2.62 GHz and the dc-power consumption shows 2.07 mW with 1.8V supply voltage, respectively.

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참고문헌

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