Abstract: Design of a antenna array based on a low refractive index metamaterials can achieve the directive of higher than traditional antenna array under the diameter of the same area. The antenna array has the following characteristics: a significant reduction in the number of array elements, array element spacing is much larger than a wavelength and feed network is simple. Under the same aperture size, The gain of a 4′4 array integrated metamaterials superstrate antenna array structure is close to that of the conventional 16′16 array antenna . The antenna array proposed in this paper has a high value in the high gain antenna system.