Differential-drive CMOS rectifier for UHF RFIDs with 66% PCE at -12 dBm input

Atsushi Sasaki, Koji Kotani, Takashi Ito

研究成果: Conference contribution

51 被引用数 (Scopus)

抄録

A Aigh efficiency differential CMOS rectifier circuit for UHF RFIDs was developed. The rectifier has a cross-coupled bridge configuration and is driven by a differential RF input. Differential-drive topology enables simultaneous low ON-resistance and small reverse leakage of diode-connected MOS transistors, resulting in large power conversion efficiency (PCE), especially under small RF input power conditions. The differential-drive rectifier was fabricated with 0.18-μm CMOS technology, and the measured performance was compared with those of other types of rectifiers. Dependence of the PCE on an input RF signal frequency and output loading conditions was also evaluated. 66% of PCE was achieved under conditions of 953 MHz, -12 dBm RF input and 10 Kω DC output load. This is twice as large as that of the state-of-the-art rectifier circuit. The peak PCE increases with a decrease in operation frequency and with an increase in output load resistance.

本文言語English
ホスト出版物のタイトルProceedings of 2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008
ページ105-108
ページ数4
DOI
出版ステータスPublished - 2008 12 1
イベント2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008 - Fukuoka, Japan
継続期間: 2008 11 32008 11 5

出版物シリーズ

名前Proceedings of 2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008

Other

Other2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008
国/地域Japan
CityFukuoka
Period08/11/308/11/5

ASJC Scopus subject areas

  • ハードウェアとアーキテクチャ
  • 電子工学および電気工学

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