High Efficiency, Low-Power RF Energy Harvesting Tri-Band Rectenna for Mid-Band 5G and Wi-Fi 6E Applications
DOI:
https://doi.org/10.13052/2026.ACES.J.410506Keywords:
Power conversion efficiency (PCE), radio frequency energy harvesting (RFEH), rectifier circuit, Schottky diode, tri-band rectennaAbstract
In this paper, a new tri-band rectenna is presented for radio frequency energy harvesting (RFEH) deployment. The proposed RFEH system integrates two primary components: an antenna and a rectifier. First, the antenna consists of a CPW-fed circularly-shaped patch incorporating three slots. Each slot is strategically introduced to reject a specific band. Second, the rectifier circuit is structured to ensure an efficient RF-to-DC conversion over three bands. High efficiency peaks are achieved at 78%, 76%, and 60% respectively at 3 GHz, 4 GHz, and 6.5 GHz, under 5 dBm input power, with overall efficiency average exceeding 71%. Peak DC output voltages of 2.52 V, 2.47 V, and 2.20 V are obtained at the same frequencies under the same conditions. The results confirm that the proposed rectenna effectively spans both the 5G mid-band and Wi-Fi 6E band, enabling the simultaneous and reliable powering of low-power devices. Furthermore, the antenna exhibits high frequency repeatability, achieved through the independent tuning of each band via strategically integrated slots.
Downloads
References
J. Sang, L. Qian, X. Wang, M. Li, J. Wang, G. Shi, and Z. Zhu, “A triple-band and high-gain circularly polarized rectenna for radio-frequency energy harvesting applications,” IEEE Transactions on Antennas and Propagation, vol. 73, no. 8, pp. 5223–5238, 2025.
J. Shi, C. Song, Y. He, C. Zhang, Y. Wang, Z. Zhang, J. Zhang, W. Li, and Y. Huang, “A high efficiency, simple-structure, compact wideband microwave energy harvester for wirelessly-powered IoT receivers,” IEEE Internet of Things Journal, vol. 12, no. 13, pp. 23510–23523, 2025.
T. Ling, M. Li, H. Shao, J. Dong, and L. Qian, “A dual-band simple coplanar-structured rectifying metasurface for wireless energy harvesting,” IEEE Antennas and Wireless Propagation Letters, vol. 24, no. 7, pp. 1665–1669, 2025.
G. Polaiah, “Rectifier integrated triple-band microwave absorber for efficient wireless power transmission,” Electromagnetics, vol. 45, no. 7, pp. 577–594, 2025.
X. Liu, D. Zhang, Y. Li, and Z. Huang, “Super-broadband rectifier with wide-band resistance compression network and harmonic cycling for RF-harvesting,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 38, no. 1, pp. 67–73, 2023.
J. Liu and J. Y. Li, “A dual circularly polarized ultrawideband rectenna with high efficiency for wireless energy harvesting,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 39, no. 3, p. 254, 2024.
P. R. Meher, S. K. Mishra, and M. A. Halimi, “A low-profile compact broadband CP DRA for RF energy harvesting applications,” IETE Journal of Research, vol. 70, no. 5, pp. 4540–4548, 2024.
J. Liu, B. X. Liu, and Z. F. Lu, “Design of a dual-band polarization reconfigurable rectenna for radio frequency energy harvesting,” IEEE Antennas and Wireless Propagation Letters, vol. 24, no. 6, pp. 1412–1416, 2025.
H. W. Pan, P. F. Zhang, X. Xu, and X. H. Wang, “Compact dual-band patch rectennas impedance matching circuit eliminated for wireless energy harvesting,” Electromagnetics, vol. 45, no. 4, pp. 334–346, 2025.
C.-H. Du, F. Cheng, Y. Yang, H. Zhu, and C. Gu, “Omnidirectional flexible tri-band rectenna with eliminated matching circuit for ambient RF energy harvesting,” IEEE Transactions on Microwave Theory and Techniques, vol. 73, no. 1, pp. 674–686, 2025.
M. M. Fakharian, “A dual circular and linear polarized rectenna for RF energy harvesting at 0.9 and 1.8 GHz GSM bands,” Electromagnetics, vol. 41, no. 8, pp. 545–556, 2021.
N. Chen and S. Yang, “A multi-band, multi-mode metasurface with only single-port for high-selective electromagnetic energy harvesting,” IEEE Transactions on Antennas and Propagation, vol. 73, no. 9, pp. 6437–6450, 2025.
M. Labbaf, M. Bekrani, M. Fathollahi, and M. M. Taskhiri, “High-efficiency quad-band RF energy harvesting system with improved cross-coupled differential-drive rectifier,” Frequenz, vol. 79, no. 1-2, pp. 29–39, 2025.
W. Zahra, A. Zerfaine, and T. Djerafi, “Dual-band impedance transformer using four-section with a wide and flexible frequency ratio,” Microwave and Optical Technology Letters, vol. 67, no. 8, p. e70309, 2025.
M. T. Le, D. A. Pham, H. T. Vu, V. D. Ngo, and Q. C. Nguyen, “A novel dual-band ambient RF energy harvesting system for autonomous wireless sensor node application,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 36, no. 10, pp. 1367–1375, 2021.
X. Bai, J.-W. Zhang, L.-J. Xu, and B.-H. Zhao, “A broadband CPW fractal antenna for RF energy harvesting,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 33, no. 5, pp. 482–487, 2018.
S. K. Bairappaka, A. Ghosh, M. A. Halimi, and B. Roy, “A dual-band dual-polarized rectenna for efficient RF energy harvesting in battery-less IoT devices with broad power range,” International Journal of Communication Systems, vol. 38, no. 3, p. e6103, 2025.
“IEEE Standard for Information Technology,” IEEE Std 802.11ax-2021 (Amendment to IEEE Std 802.11-2020), pp. 1–767, 2021.
“ITU News Magazine no. 3,” 2023.
CST, “CST Microwave Studio, version 2024,” Computer Simulation Technology, Framingham, MA, 2024.
B. Hammache, A. Messai, I. Messaoudene, and T. A. Denidni, “A compact ultra-wideband antenna with three C-shaped slots for notched band characteristics,” Microwave and Optical Technology Letters, vol. 61, no. 1, pp. 275–279, 2019.
G. Kumar and R. Kumar, “A survey on planar ultra-wideband antennas with band notch characteristics: principle, design, and applications,” AEU-International Journal of Electronics and Communications, vol. 109, pp. 76–98, 2019.
Keysight Technologies, “Advanced Design System (ADS), version 2020,” Keysight Technologies, Santa Rosa, CA, 2020.
A. Kumar, M. Gupta, M. A. Albreem, D.-B. Ha, and E. M. K. Sharma, Wearable and Neuronic Antennas for Medical and Wireless Applications, Hoboken, NJ: John Wiley & Sons, 2022.
M. A. Halimi, T. Khan, Nasimuddin, A. A. Kishk, and Y. M. Antar, “Rectifier circuits for RF energy harvesting and wireless power transfer applications: A comprehensive review based on operating conditions,” IEEE Microwave Magazine, vol. 24, no. 1, pp. 46–61, 2022.


