High Gain Planar Matrix Antenna Equipped by Large Radiating Pixels (1.2λ×1.2λ)

This paper presents a new electromagnetic aspect of the antenna matrix which concerns the realization of high gains by using radiating pixels with large dimensions greater than (0.8λ × 0.8λ). The electromagnetic advantages are shown through a comparative study made between a 1D matrix antenna and a conventional linear antenna array. Comparison concerns bandwidth, radiating surfaces, surface efficiency and grating lobes. The comparison shows the possibility of eliminating grating lobes with large matrix antenna thus breaking the periodicity of conventional arrays.