A High Efficiency Rectifier for UHF RFID Passive Tags with vth Cancellation Technique
Publish place: کنفرانس بین المللی تحقیقات بنیادین در مهندسی برق
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICEEC01_216
تاریخ نمایه سازی: 17 آبان 1396
Abstract:
In this paper a high sensitivity and high power efficiency full wave rectifier is proposed for UHF RFID applications at 953MHz frequency. The cross-coupled structure is used in the design; also the bootstrap circuit is employed to eliminate the effect of threshold voltage of pass transistors. For the purpose of improving the power efficiency and the chip area, the sizes of transistors are adjusted in UHF frequency. In this rectifier the power efficiency changes from 62.7% to 76.1% and the voltage conversion ratio changes from 62.8% to 77.3% for the variation of input voltage from 0.7V to 1.8V. The simulation of the proposed rectifier is done in 0.18µm CMOS technology with the help of Cadence software, while the chip area is 0.00525mm2.)
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Authors
Rezvan Dastanian
Imam Hussein Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran
Samsam Izadpanah
Imam Hussein Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran
Shabnam Roozitalab
Imam Hussein Faculty of Engineering, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran