5G generation of mobile networks are intended to connect hundreds different devices creating crucial demands for services of great broadband capacities and transmission speeds [1]. Consequently, new challenges to design of millimeter band antennas have come out requiring antennas composed of dozens of radiating elements. Antenna arrays feature better radiation characteristics, combined with the reduced sizes and higher gains. CPW (coplanar waveguide) -fed antennas are considered as good candidates for applications in 5G mobile communication systems due to their wide bandwidth, low cost, light weight, small size, and ease of fabrication and integration with active components [2]-[8].Compared with previous generations of mobile communication networks, the operation bandwidth of the proposed 5G networks will be at millimeter-wave frequencies since it is one of the ways to get rid of the overcrowded sub-6 GHz frequency range. Several promising millimeter-wave bands have been released by International Telecommunication Union (ITU) for the 5G wireless communication system that include the 24.25 – 27.5 GHz, 37 – 40.5 GHz, 66 – 76 GHz bands [9]. Meanwhile, the Federal Communications Commission (FCC) has considered the spectrum of approximately 11 GHz above 24GHz for flexible, mobile and fixed wireless broadband for the next-generation 5G networks and technologies in the United States [10].