Abdallah, H. ., and W. . Wasylkiwskyj. “Comparison of Return Loss Calculations With Measurements of Narrow-Band Microstrip Patch Antennas”. Applied Computational Electromagnetics Society Journal (ACES), vol. 19, no. 3, June 2022, pp. 184-7, https://journals.riverpublishers.com/index.php/ACES/article/view/16701.