전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제68권2호
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  • Pages.304-309
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  • 2019
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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가변 임피던스 매칭 네트워크를 이용한 영상 감시 Disposable IoT용 광대역 CMOS RF 에너지 하베스터

A CMOS Wideband RF Energy Harvester Employing Tunable Impedance Matching Network for Video Surveillance Disposable IoT Applications

  • Lee, Dong-gu (Dept. of Electronics Engineering, Kangwon National University) ;
  • Lee, Duehee (Dept. of Electrical and Electronics Engineering, Konkuk University) ;
  • Kwon, Kuduck (Dept. of Electronics Engineering, Kangwon National University)
  • 투고 : 2018.09.20
  • 심사 : 2019.01.11
  • 발행 : 2019.02.01
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents a CMOS RF-to-DC converter for video surveillance disposable IoT applications. It widely harvests RF energy of 3G/4G cellular low-band frequency range by employing a tunable impedance matching network. The proposed converter consists of the differential-drive cross-coupled rectifier and the matching network with a 4-bit capacitor array. The proposed converter is designed using 130-nm standard CMOS process. The designed energy harvester can rectify the RF signals from 700 MHz to 900 MHz. It has a peak RF-to-DC conversion efficiency of 72.25%, 64.97%, and 66.28% at 700 MHz, 800 MHz, and 900 MHz with a load resistance of 10kΩ, respectively.

키워드

과제정보

본 연구는 과학기술정보통신부 및 정보통신기술진흥센터의 대학ICT연구센터지원사업의 연구결과로 수행되었음(IITP-2018-0-01433). 2018년도 정부(교육부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구 사업임(NRF-2018R1D1A1B07042804).

참고문헌

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