https://doi.org/10.1051/epjconf/202532601001
A New Design of a Wideband Fractal Antenna for RF Energy Harvesting Applications at 5.8 GHz
1 LABTIC, ENSAT, Abdelmalek Essaadi University Tetouan, Morocco
2 ENSATE Abdelmalek Essaadi University Tetouan, Morocco
3 LAMIGEP EMSI, Marrakech, Morocco
4 Faculty of Engineering Electrical Engineering Department Moncton University, Canada
5 TED, AEEP, FPL, Abdelmalek Essaadi University, Tetouan, Morocco
* Corresponding author: Mohamed.guermal@etu.uae.ac.ma
Published online: 21 May 2025
This paper introduces the design and evaluation of a wideband fractal antenna intended for RF energy harvesting applications operating near 5.8 GHz. The antenna employs a coplanar waveguide (CPW) feed, enhancing impedance matching and simplifying integration into RF systems. To achieve improved bandwidth, gain, and radiation efficiency while maintaining a compact form factor, a fractal structure is mounted on a 1.6 mm thick FR4 substrate with a dielectric constant of 4.4 and a loss tangent of 0.025. Simulations carried out using Advanced Design System (ADS) and CST Microwave Studio, both full-wave electromagnetic solvers, demonstrate a broad input impedance bandwidth. These results confirm the antenna’s effective operation within the Industrial, Scientific, and Medical (ISM) band, positioning it as a strong candidate for wireless power transfer, lo-power IoT devices, and sensor network applications.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
