Das, Tarun Kumar, Sayan Chatterjee, and Bhaskar Gupta. “Advancements and Challenges in Microstrip Dual-Band Bandpass Filters: A Comprehensive Survey”. Journal of Electronics and Electrical Engineering 5, no. 2 (July 17, 2026): 378–410. Accessed August 11, 2026. https://ojs.wiserpub.com/index.php/JEEE/article/view/10029.