%0 Journal Article %T Improving the Shielding Effectiveness of a Rectangular Metallic Enclosure with aperture by Using Extra Shielding Wall %A مهدی بهادر زاده %A محمد ناصر مقدسی %A Attari, Amir Reza %J Progress in Electromagnetics Research Letters %@ 1937-6480 %D 2008