Temperature Effects on the Efficiency of Dickson Charge Pumps for Radio Frequency Energy Harvesting | Zendy

Francesco G. Della Corte | Zendy; Massimo Merenda | Zendy; Gennaro G. Bellizzi | Zendy; Tommaso Isernia | Zendy; Riccardo Carotenuto | Zendy

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Temperature Effects on the Efficiency of Dickson Charge Pumps for Radio Frequency Energy Harvesting

Author(s) -

Francesco G. Della Corte,

Massimo Merenda,

Gennaro G. Bellizzi,

Tommaso Isernia,

Riccardo Carotenuto

Publication year - 2018

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2018.2876920

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

An experimental study is carried out to assess the effect of temperature on the conversion efficiency of ultrahigh-frequency energy harvesters based on diode-capacitor Dickson charge pumps, frequently used in self-energizing circuits, such as in radio frequency identification tags or in wireless sensor nodes. Using off-the-shelf Schottky diodes often adopted for this application, it is shown that the harvester conversion efficiency at 868 MHz is temperature dependent due to the changing rectification ratio, namely the ratio between the forward and the reverse current flowing through the low barrier height Schottky diodes, which both show a positive derivative with T. The experimental study, supported by SPICE simulations, has shown that a temperature variation might be particularly harmful at the lowest incident power regimes, when even a minimal drop in the conversion efficiency might determine the out-of-servicing of a wirelessly energized circuit.

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