فهرست مقالات Vahid Rezaeian مقاله 1 - Design and Fabrication of a Lowpass Filter Using a New Butterfly-Shaped Defected Ground Structure 10.52547/mjtd.10.3.129 Majeed Zaidan Vahid Rezaeian Saber Izadpanah Toos Majlesi Journal of Telecommunication Devices , شماره 39 , سال 10 , تابستان 2021