How to optimize simulation performance parameters such as gain, directivity, losses and bandwidth with a view to energy efficiency? This paper presents a dual-band rectenna based on a slotted patch antenna printed on an FR4 substrate (50 mm × 39 mm × 1.6 mm). This antenna model, whose parameters have been adjusted, is able to respond effectively to the two targeted resonance frequencies f1 = 900 MHz and f2 = 2.45 GHz at low power levels. The aim of this study is to develop a multifunctional antenna that can simultaneously act as an RFID tag and an ambient radio frequency energy recuperator, making its system self-powered. The proposed solution incorporates not only a sketch of an antenna, but also a rectifier circuit and an energy storage system. We have chosen to use a 3.7 V - 600 mAH Lithium Polymer (LIPO) battery for its low self-discharge, light weight and high energy density. The proposed solution is to radiate the antenna on two frequency bands in order to recover the surrounding RF energies. The GSM and Wi-Fi frequencies are a convincing choice, providing a high bandwidth, reflection coefficient and gain for optimum power. The RF/DC conversion circuit is based on a series topology using the SMS7630 Schottky diode, receiving an input power of between 10 dBm and 30 dBm, for load resistors of 2.5 kΩ, 3 kΩ and 3.5 kΩ respectively. Maximum conversion efficiency of 67.24% at 1.77 GHz for a 3 kΩ load resistor. The antenna and rectifier circuit were designed and simulated using Advanced Design System (ADS) 2023 R1 software. This study yielded RF/DC conversion efficiencies of 67.243% and 3.902% respectively for resonant frequencies of 1.77 GHz and 2.7 GHz with an optimum 3 kΩ load.
References
[1]
Chen, X., Yao, N., Zeng, B. and Zhang, Q. (2021) Ion-Solvent Chemistry in Lithium Battery Electrolytes: From Mono-Solvent to Multi-Solvent Complexes. Fundamental Research, 1, 393-398. https://doi.org/10.1016/j.fmre.2021.06.011
[2]
Paradiso, J.A. and Starner, T. (2021) Energy Scavenging for Mobile and Wireless Electronics. IEEE Pervasive Computing, 4, 18-27.
[3]
Tran, L.G., et al. (2017) RF Power Harvesting: A Review on Designing Methodologies and Applications. Micro and Nano Systems Letters, 5, 1-16. https://doi.org/10.1186/s40486-017-0051-0
[4]
Andia Vera, G. (2009) Efficient Rectenna Design for Ambient Microwave Energy Recycling. PhD Thesis, University of Catalunya.
[5]
Yan, Y., Shi, W. and Zhang, X. (2020) Design of UAV Wireless Power Transmission System Based on Coupling Coil Structure Optimization. EURASIP JWCN, 67, 1-13.
[6]
Carvalho, N.B., et al. (2023) Wireless Power Transmission: R&D Activities within Europe. Elsevier—Journal of Electromagnetics. https://www.researchgate.net/publication/261758272_Wireless_Power_Transmission_RD_Activities_Within_Europe
[7]
Mahapatra, S., et al. (2021) Review of RF Energy Harvesting System with Rectenna. Energy Reports, Elsevier.
[8]
Adam, I., et al. (2018) A Compact Dual-Band Rectenna for Ambient RF Energy Harvesting. Microwave and Optical Technology Letters, 60, 2740-2748. https://doi.org/10.1002/mop.31475DigitalObjectIdentifier
[9]
Zhang, Y., et al. (2022) Design and Analysis of a Dual-Band Patch Antenna for Wireless Charging and RFID. AEÜ—International Journal of Electronics and Communications, 26, 210-221.
[10]
Zohaib H., et al (2017) Design of Impedance Matching Circuits for RF Energy Harvesting Systems. Microelectronics Journal, 62, 49-56 https://doi.org/10.1016/j.mejo.2017.02.004
[11]
Muhammad, B., Khan, D., et al. (2022) A Highly Efficient RF-DC Converter for Energy Harvesting Applications Using a Threshold Voltage Cancellation Scheme. Sensors, 2022, 22, Article No. 2659. https://doi.org/10.3390/s22072659
[12]
Alibakhshikenari, M., et al. (2021) Review on Antenna-Based Ambient RF Energy Harvesting. Elsevier Physics Reports. https://www.researchgate.net/publication/358422429_A_Review_on_Antenna_Technologies_for_Ambient_RF_Energy_Harvesting_and_Wireless_Power_Transfer_Designs_Challenges_and_Applications
[13]
Olowoleni, J.O., Awosope, C.O.A., Adoghe, A.U., Obinna, O. and Ebubechukwu Udo, U. (2021) Design and Simulation of a Novel 3-Point Star Rectifying Antenna for RF Energy Harvesting at 2.4 GHz. Cogent Engineering, 8, Article ID: 1943153. https://doi.org/10.1080/23311916.2021.1943153
[14]
Mehta, P. and Nella, A. (2024) Dual-Band Low-Power Rf-to-Dc Signal Converter Circuits for Energy Harvesting. AIP Advances, 14, Article ID: 075107. https://doi.org/10.1063/5.0223367
[15]
Soh, P.J., Rahim, M.K.A., Asrokin, A. and Aziz, M.Z.A.A. (2005) Comparative Radiation Performance of Different Feeding Techniques for a Microstrip Patch Antenna. 2005 Asia-Pacific Conference on Applied Electromagnetics, Johor Bahru, 19-21 December 2005, 35-40. https://doi.org/10.1109/apace.2005.1607769
[16]
Alippi, C. and Galperti, C. (2008) An Adaptive System for Optimal Solar Energy Harvesting in Wireless Sensor Network Nodes. IEEE Transactions on Circuits and Systems I: Regular Papers, 55, 1742-1750. https://doi.org/10.1109/tcsi.2008.922023
