1. Ando, A., A. Kondo, and S. J. Kubota, "A study of ratio zone length of dual-polarized omnidirectional antennas mounted on rooftop for personal handy-phone system," IEEE Trans. Antennas and Propag., Vol. 57, No. 1, 2-10, Jan. 2008.
2., "Technical specifications and group radio access network; user equipment (UE) radio transmission and reception (FD/TDD)," Release 9, Third Generation Partnership Project (3GPP), TS. 25.101/102/104/105. V9.5.0, 2010.
3. Quan, X. L. and R. L. Li, "A broadband dual-polarized omnidirectional antenna for base stations," IEEE Trans. Antennas and Propag., Vol. 61, No. 2, 943-947, Feb. 2013.
4. Dai, X. W., Z. Y. Wang, C. H. Liang, X. Chen, and L. T. Wang, "Multiband and dual-polarized omnidirectional antenna for 2G/3G/LTE application," IEEE Antennas Wireless Propag. Lett., Vol. 12, 1492-1495, 2013.
5. Jolani, F., Y. Q. Yu, and Z. Z. Chen, "A novel broadband omnidirectional dual polarized MIMO antenna for 4G LTE applications," 2014 IEEE International Wireless Symposium (IWS), 1-4, 2014.