Noha M. Rashad and  W. Swelam and  M. H. Abd ElAzeem,  Ankh Key Broadband Array Antenna for 5G Applications.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2017, vol. 125(5). 591 - 596
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10007163.