Mohammed K. Al-Obaidi. Characteristic Mode–Enabled Hexagonal Ring Patch Antenna for 5.5 GHz IoT/Wi-Fi Sensing. IJSER [Internet]. 2025 Dec. 1 [cited 2026 May 26];4(4):1-10. Available from: https://ijser.aliraqia.edu.iq/index.php/ijser/article/view/352