Low-Cost Multiband Four-Port Phased Array Antenna for Sub-6 GHz 5G Applications With Enhanced Gain Methodology in Radio-Over-Fiber Systems Using Modulation Instability. - Hassan Zakeri; Rasul Azizpour; Parsa Khoddami; Gholamreza Moradi 001; Mohammad Alibakhshikenari; Chan Hwang See; Tayeb A. Denidni; Francisco Falcone; Slawomir Koziel; Ernesto Limiti (IEEE Access, 2024)