In this article, a high gain dual band rectenna is proposed for energy harvesting applications. A dual band antenna is designed and optimized to operate at 3.5 GHz and 5.8 GHz frequency bands. The antenna is based on a multilayer substrate structure excited by aperture-coupling feed. In order to achieve a maximum gain of the antenna in both bands, a rectangular cell optimized by genetic algorithms is etched on the radiating element (patch). This antenna was simulated and fabricated, and the results show a good agreement in both bands (3.5 and 5.8 GHz) with a high gain of 10.2 dBi and 8.92 dBi for the first and second bands, respectively. A dual-band rectifier is also designed and studied to harvest the radio frequency energy absorbed by the antenna to DC energy at these frequency bands (3.5 GHz and 5.8 GHz). This rectifier shows a good performance in terms of conversion efficiency which achieves 44% in the first band and 29% in the second band. As a result, an output voltage of 656.88 mV for a low input power of 0 dBm is observed when the rectifier operates at both bands.
2. Palazzi, V., et al., "A novel ultra-lightweight multiband rectenna on paper for RF energy harvesting in the next generation LTE bands," IEEE Trans. Microwave Theory Techniques, Vol. 66, No. 1, 366-379, 2017.
3. Shen, S., C. Y. Chiu, and R. D. Murch, "A dual-port triple-band L-probe microstrip patch rectenna for ambient RF energy harvesting," IEEE Antennas and Wireless Propagation Letters, Vol. 16, 3071-3074, 2017.
4. Shi, Y., J. Jing, Y. Fan, L. Yang, and M. Wang, "Design of a novel compact and efficient rectenna for WiFi energy harvesting," Progress In Electromagnetics Research C, Vol. 83, 57-70, 2018.
5. Arrawatia, M., M. S. Baghini, and G. Kumar, "Differential microstrip antenna for RF energy harvestin," IEEE Trans. Antennas Propag., Vol. 63, No. 4, 1581-1588, 2015.
6. Derbal, M. C. and M. Nedil, "A high gain rectenna for energy harvesting applications," 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 1505-1506, Atlanta, GA, USA, 2019.
7. Aboualalaa, M., A. B. Abdel-Rahman, A. Allam, H. Elsadek, and R. K. Pokharel, "Design of a dual-band microstrip antenna with enhanced gain for energy harvesting applications," IEEE Antennas and Wireless Propagation Letters, Vol. 16, 1622-1626, 2017.
8. Niotaki, K., S. Kim, S. Jeong, A. Collado, A. Georgiadis, and M. M. Tentzeris, "A compact dual-band rectenna using slot-loaded dual band folded dipole antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 12, 1634-1637, 2013.
9. Mattsson, M., C. I. Kolitsidas, and B. L. G. Jonsson, "Dual-band dual-polarized full-wave rectenna based on differential field sampling," IEEE Antennas and Wireless Propagation Letters, Vol. 17, No. 6, 956-959, 2018.
10. Wang, M., Y. Fan, L. Yang, Y. Li, J. Feng, and Y. Shi, "Compact dual-band rectenna for RF energy harvest based on a tree-like antenna," IET Microwaves, Antennas & Propagation, Vol. 13, No. 9, 1350-1357, 2019.
11. Xie, F., G.-M. Yang, and W. Geyi, "Optimal design of an antenna array for energy harvesting," IEEE Antennas and Wireless Propagation Letters, Vol. 12, 155-158, 2013.
12. Kumar, H., M. Arrawatia, and G. Kumar, "Broadband planar log-periodic dipole array antenna based RF-energy harvesting system," IETE Journal of Research, Vol. 65, No. 1, 39-43, 2019.
13. Derbal, M. C., A. Zeghdoud, and M. Nedil, "A novel dual band antenna design forWiFi applications using genetic algorithms," IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 1009-1010, Boston, 2018.
14. Mohd Noor, F. S., Z. Zakaria, H. Lago, and M. A.Meor Said, "Dual-band aperture-coupled rectenna for radio frequency energy harvesting," International Journal of RF and Microwave Computer Aided Engineering, Vol. 29, No. 1, e21651, 2019.
15. Lu, P., X. S. Yang, J. L. Li, and B. Z. Wang, "A dual-frequency quasipifa rectenna with a robust voltage doubler for 2.45- and 5.8-GHz wireless power transmission," Microwave and Optical Technology Letters, Vol. 57, No. 2, 319-322, 2015.