I. Introduction
Recently, there has been strong interest in the use of optically transparent materials for antennas. Optical transparent antennas may be necessary for satellites and specific wireless communication systems to provide high light transparency [1]. It is possible to place transparent antennas on top of solar panels and windows, enabling for great optical transparency while functioning as conventional antennas. This could lead to fully exploit the already existing area for energy collection. As a result, high-gain transparent array antennas are a promising candidate for microsatellites to save valuable and limited space on the satellite.