N. Ojaroudi Parchin and  H. Jahanbakhsh Basherlou and  Y. Al-Yasir and  A. M. Abdulkhaleq and  R. A. Abd-Alhameed and  P. S. Excell,  60 GHz Multi-Sector Antenna Array with Switchable Radiation-Beams for Small Cell 5G Networks.   journal   = {International Journal of Information and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2020, vol. 158(2). 50 - 54
    [viewed 15 August 2022]. Available from: https://publications.waset.org/pdf/10011069.