Anh Dat Phan, M. T. Le, and Nguyen Quoc Cuong. “Polarization-Insensitive 2.45 GHz Rectenna Using Hybrid Coupler for Wi-Fi Energy Harvesting Application”. Journal of Measurement, Control, and Automation, vol. 3, no. 1, June 2022, pp. 36-40, https://mca-journal.org/index.php/mca/article/view/79.