Adinehvand, Auob, and Ali Lotfi. 2021. “Compact Lowpass Filter With Wide Stop-Band Using Open Stubs-Loaded Spiral Microstrip Resonant Cell”. Applied Computational Electromagnetics Society Journal (ACES) 28 (01):27-34. https://journals.riverpublishers.com/index.php/ACES/article/view/11697.