Astuti DW, Muslim M, Umaisaroh U, A Majid H, Alam S. Broadband HMSIW antenna using a demi hexagonal ring slot for X-band application. Sinergi [Internet]. 2025 Jan. 2 [cited 2026 May 29];29(1):73-82. Available from: https://training-ojs3-publikasi.mercubuana.ac.id/index.php/sinergi/article/view/25804