A compact broadband GFET based rectenna for RF energy harvesting applications
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
Springer
Abstract
In this paper, a compact GFET-based rectifier integrated with a monopole antenna is proposed for wireless energy harvesting applications. The GFET increases impedance bandwidth of the rectifying circuit, thus covering a range of 22.5–27.5 GHz. The sensing antenna is a triangular monopole with truncated corners for realizing circular polarization at the frequencies 24.25 GHz and 27 GHz. By the help of ?/4 transformer, the sensing antenna is matched with the proposed GFET rectifier. The RF-DC conversion efficiency realized is 80% at 5 dBm for the load of 5 K?, and the output DC voltage observed is 6.8 V. The modified ground plane triangular monopole antenna shows a peak gain of 7.8 dBi. The designed rectenna prototype is fabricated and found simulated and measured results are in good agreement. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
Description
Keywords
Electric impedance, Electric rectifiers, Energy harvesting, Microwave antennas, Monopole antennas, Rectifying circuits, Slot antennas, Impedance bandwidths, Measured results, Modified ground plane, Output DC voltage, Peak gain, RF energy harvesting, Triangular monopoles, Wireless energy, Rectennas
Citation
Microsystem Technologies, 2020, 26, 6, pp. 1881-1888