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This paper has been enhanced the dimensions of the microstrip antenna namely; the height of the microstrip antenna substrate and the width of the patch microstrip antenna, by using nano-composite materials which composite of RT Duriod 5880 with nanofillers (Fumed Silica and Aluminum Oxide). Thus, in this paper, novel nano-fillers are added to RT Duriod, and then the nano-composed materials will be used as a substrate for the microstrip antenna. The height and the width of suggested model of the microstrip antenna are smaller than those of the conventional rectangular microstrip antenna. The reduction of the size is achieved by using nano-composed materials of high relative permittivity. By using this novel nano-composite material, an efficient and compact microstrip antenna can be obtained, also compact size, simple fabrication and increase Radiation, Bandwidth and Surface wave power of microstrip antenna.