Foldable aperture coupled microstrip antenna array for portable wireless application

In this paper, the design and experimental implementation of a foldable aperture-coupled microstrip antenna array for portable wireless application is presented. Using aperture-coupled feed method, rectangular microstrip patches employing a multilayer flexible substrate structure was designed. The main motivation of this work was to develop portable/foldable GSM antenna array (band 935–960 MHz) for passive radar and other wireless system applications.