Shimu, Nusrat Jahan, Pankaj Chandra Kar, Md Ariful Islam, and Anis Ahmed. “Left Handed Metamaterials in Microstrip Patch Antenna Design: Miniaturization, Multiband Operation, and Improved Performance”. Dhaka University Journal of Applied Science and Engineering 8, no. 1 (July 15, 2024): 1–12. Accessed September 5, 2025. https://banglajol.info/index.php/DUJASE/article/view/72983.