A dual-band quasi-magneto-electric patch antenna for X-band phased array

The design and experimental validation of a dual-band array antenna concept is presented. The antenna supports quasi-magneto-electric radiation characteristics which simultaneously utilizes both the electric and magnetic radiation characteristics in the overall radiation mechanism. A prototype of the antenna has been manufactured and the demonstrated performances include dual-band operation with large frequency ratio, consistent radiation patterns and good sub-band bandwidths. In addition to this the antenna´s low-profile electrical dimensions are well-suited for application in wide-scanning phased arrays.