See, C. H., Abd-Alhameed, R. . A., McEwan, N. . J., Jones, S. M. R., Asif, R., & Excell, P. . S. (2014). Design of a printed MIMO/diversity monopole antenna for future generation handheld devices: Design of a Printed MIMO/Diversity Monopole Antenna. International Journal of RF and Microwave Computer-Aided Engineering, 24(3), 348-359. https://doi.org/10.1002/mmce.20767