Design of a Rectangular Loop Array Antenna for Beam Scanning

In this paper, a rectangular loop array antenna for beam scanning is designed. A program using RWG MoM(Rao Wilton Glisson Method of Moment) is developed for SEP(Scan Element Pattern) theoretically. Simulation results obtained by using a commercial software tool, MWS are compared with the MoM results to confirm the validity of the program. Also these results are compared with the measured ones for the case of an subarray. The fabricated subarray showed a flat gain characteristic in the elevation scan range of in the E-plane.