Enhanced RF Energy Harvesting System Utilizing Piezoelectric Transformer

Mahmoud Al Ahmad; K. S.Phani Kiranmai; Abdulla Alnuaimi; Obaid Alyammahi; Hamad Alkaabi; Saeed Alnasri; Abdulrahman Dahir

doi:10.3390/s24227111

Enhanced RF Energy Harvesting System Utilizing Piezoelectric Transformer

Mahmoud Al Ahmad, K. S.Phani Kiranmai, Abdulla Alnuaimi, Obaid Alyammahi, Hamad Alkaabi, Saeed Alnasri, Abdulrahman Dahir

Department of Electrical and Communication Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

RF energy harvesting converts ambient signals into electrical power, providing a sustainable energy source. This study demonstrates the use of a piezoelectric transformer for efficient RF energy harvesting. In this work, a piezoelectric transformer (PT) is employed as a high-gain, efficient inverting amplifier to enhance RF wireless energy harvesting. The PT, composed of lead zirconate titanate (PZT), is placed after the receiving loop antenna, with its output connected to an AC-to-DC converter circuit. Maximum harvested power was observed at the PT’s resonance frequency of 50 kHz, with an optimal load of 40 kΩ. The system, comprising the antenna, transformer, and rectifier circuit, continues to resonate at 50 kHz, as confirmed by input impedance measurements, demonstrating stable and effective performance. The overall system efficiency was characterized to be 88%.

Original language	English
Article number	7111
Journal	Sensors
Volume	24
Issue number	22
DOIs	https://doi.org/10.3390/s24227111
Publication status	Published - Nov 2024

Keywords

energy harvesting
piezoelectric materials
piezoelectric transformer
RF energy
sustainability

ASJC Scopus subject areas

Analytical Chemistry
Information Systems
Atomic and Molecular Physics, and Optics
Biochemistry
Instrumentation
Electrical and Electronic Engineering

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10.3390/s24227111

Cite this

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title = "Enhanced RF Energy Harvesting System Utilizing Piezoelectric Transformer",

abstract = "RF energy harvesting converts ambient signals into electrical power, providing a sustainable energy source. This study demonstrates the use of a piezoelectric transformer for efficient RF energy harvesting. In this work, a piezoelectric transformer (PT) is employed as a high-gain, efficient inverting amplifier to enhance RF wireless energy harvesting. The PT, composed of lead zirconate titanate (PZT), is placed after the receiving loop antenna, with its output connected to an AC-to-DC converter circuit. Maximum harvested power was observed at the PT{\textquoteright}s resonance frequency of 50 kHz, with an optimal load of 40 kΩ. The system, comprising the antenna, transformer, and rectifier circuit, continues to resonate at 50 kHz, as confirmed by input impedance measurements, demonstrating stable and effective performance. The overall system efficiency was characterized to be 88%.",

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AU - Al Ahmad, Mahmoud

AU - Kiranmai, K. S.Phani

AU - Alnuaimi, Abdulla

AU - Alyammahi, Obaid

AU - Alkaabi, Hamad

AU - Alnasri, Saeed

AU - Dahir, Abdulrahman

PY - 2024/11

Y1 - 2024/11

N2 - RF energy harvesting converts ambient signals into electrical power, providing a sustainable energy source. This study demonstrates the use of a piezoelectric transformer for efficient RF energy harvesting. In this work, a piezoelectric transformer (PT) is employed as a high-gain, efficient inverting amplifier to enhance RF wireless energy harvesting. The PT, composed of lead zirconate titanate (PZT), is placed after the receiving loop antenna, with its output connected to an AC-to-DC converter circuit. Maximum harvested power was observed at the PT’s resonance frequency of 50 kHz, with an optimal load of 40 kΩ. The system, comprising the antenna, transformer, and rectifier circuit, continues to resonate at 50 kHz, as confirmed by input impedance measurements, demonstrating stable and effective performance. The overall system efficiency was characterized to be 88%.

AB - RF energy harvesting converts ambient signals into electrical power, providing a sustainable energy source. This study demonstrates the use of a piezoelectric transformer for efficient RF energy harvesting. In this work, a piezoelectric transformer (PT) is employed as a high-gain, efficient inverting amplifier to enhance RF wireless energy harvesting. The PT, composed of lead zirconate titanate (PZT), is placed after the receiving loop antenna, with its output connected to an AC-to-DC converter circuit. Maximum harvested power was observed at the PT’s resonance frequency of 50 kHz, with an optimal load of 40 kΩ. The system, comprising the antenna, transformer, and rectifier circuit, continues to resonate at 50 kHz, as confirmed by input impedance measurements, demonstrating stable and effective performance. The overall system efficiency was characterized to be 88%.

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KW - piezoelectric materials

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KW - RF energy

KW - sustainability

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Enhanced RF Energy Harvesting System Utilizing Piezoelectric Transformer

Abstract

Keywords

ASJC Scopus subject areas

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