A COMPACT CYLINDRICAL-SHAPE MICROSTRIP STRUCTURE WITH CLOAKING PROPERTIES FOR MUTUAL COUPLING REDUCTION IN ARRAY ANTENNAS A Dissertation Submitted to the Graduate Faculty of the North Dakota State University of Agriculture and Applied Science By Syed Aftab Naqvi In Partial Fulfillment of the Requirements for the Degree of DOCTOR OF PHILOSOPHY Major Department: Electrical and Computer Engineering November 2014 Fargo, North Dakota