WASET
Sanad, M. , Hassan, N.. "Reducing the Need for Multi-Input Multi-Output in Multi-Beam Base Transceiver Station Antennas Using Orthogonally-Polarized Feeds with an Arbitrary Number of Ports". World Academy of Science, Engineering and Technology, Open Science Index 176, International Journal of Electronics and Communication Engineering, (2021), 15(8), 335 - 339.