A dual-input extended-dynamic-PCE rectifier for dedicated far-field RF energy harvesting systems
Document Type
Article
Publication Date
6-1-2021
Abstract
This paper presents a dual-input extended-dynamic-range, high-PCE rectifier for dedicated far-field RF energy harvesting systems. Two identical input RF energy supply source are applied into two individual rectifier. The rectifier with the highest PCE is selected to deliver dc power to a single-load element. A logic control circuit senses P-in from the rectified dc voltage and toggles between the rectifiers by generating two control voltage to attain high-PCE across P-in. Simulated in a 65nm CMOS process, the proposed system achieves an extended DR of 26 dB for an output load, R-L = 100 k omega. Furthermore, a peak PCE of 54.85% and 47.87% was achieved for R-L = 100 k omega and R-L = 150 k omega, respectively. The sensitivity for an output voltage of 1 V with R-L = 100 k omega is -20.6 dBm.
Keywords
Rectifier, RF energy harvesting (RFEH) system, Power conversion efficiency (PCE), Logic control circuit
Divisions
sch_ecs
Funders
RU Grant-Faculty Program (GPF056B-2020)
Publication Title
Analog Integrated Circuits and Signal Processing
Volume
107
Issue
3
Publisher
Springer
Publisher Location
VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS