1. Yang, L. and G. B. Giannakis, "Ultra-wideband communications: An idea whose time has come," IEEE Signal Processing Magazine, Vol. 21, 26-54, Nov. 2004.
doi:10.1109/MSP.2004.1359140
2. Kaiser, T., F. Zheng, and E. Dimitrov, "An overview of ultra-wide-band systems with MIMO," Proceedings of the IEEE, Vol. 98, No. 2, 285-312, Feb. 2009.
doi:10.1109/JPROC.2008.2008784
3. Vaughan, R. G. and J. B. Andersen, "Antenna diversity in mobile communications," IEEE Trans. Veh. Technol., Vol. 36, 149-172, 1987.
doi:10.1109/T-VT.1987.24115
4. Xu, H.-X., G.-M. Wang, and M.-Q. Qi, "A miniaturized triple-band metamaterial antenna with radiation pattern selectivity and polarization diversity," Progress In Electromagnetics Research, Vol. 137, 275-292, 2013.
doi:10.2528/PIER12081008
5. Wong, K.-L., S.-W. Su, and Y.-L. Kuo, "A printed ultra-wideband diversity monopole antenna," Microw. Opt. Technol. Lett., Vol. 38, 257-259, 2003.
doi:10.1002/mop.11031
6. See, T. S. P. and Z. N. Chen, "An ultra wideband diversity antenna," IEEE Transactions on Antennas and Propagation, Vol. 57, No. 6, 1597-1605, Jun. 2009.
doi:10.1109/TAP.2009.2019908
7. Toh, W. K., Z. N. Chen, X. Qing, and T. S. P. See, "A planar UWB diversity antenna," IEEE Transactions on Antennas and Propagation, Vol. 57, No. 11, 3467-3473, Nov. 2009.
8. Zhang, S., B. K. Lau, A. Sunesson, and S. He, "Closely-packed UWB MIMO/diversity antenna with different patterns and polarizations for USB dongle applications," IEEE Transactions on Antennas and Propagation, Vol. 60, No. 9, 4372-4380, Sep. 2012.
doi:10.1109/TAP.2012.2207049
9. Hong, S., K. Chung, J. Lee, S. Jung, S.-S. Lee, and J. Choi, "Design of a diversity antenna with stubs for UWB applications," Microw. Opt. Technol. Lett., Vol. 50, 1352-1356, 2008.
doi:10.1002/mop.23389
10. Zhang, S., Z. Ying, J. Xiong, and S. He, "Ultra wideband MIMO/diversity antennas with a tree-like structure to enhance wideband isolation," IEEE Antennas and Wireless Propagation Letters, Vol. 8, 1279-1282, 2009.
doi:10.1109/LAWP.2009.2037027
11. Antonino-Daviu, E., M. Gallo, B. Bernardo-Clemente, and M. Ferrando-Bataller, "Ultra-wideband slot ring antenna for diversity applications," Electronics Letters, Vol. 46, No. 7, 478-480, Apr. 1, 2010.
doi:10.1049/el.2010.0262
12. Elsherbini, A. and K. Sarabandi, "Dual-polarized coupled sectorial loop antennas for UWB applications," IEEE Antennas and Wireless Propagation Letters,, Vol. 10, 75-78, 2011.
doi:10.1109/LAWP.2011.2109366
13. Gallo, M., E. Antonino-Daviu, M. Ferrando-Bataller, M. Bozzetti, J. M. Molina-Garcia-Pardo, and L. Juan-Llacer, "A broadband pattern diversity annular slot antenna Antennas and Propagation,", Vol. 60, No. 3, 1596-1600, Mar. 2012.
doi:10.1109/TAP.2011.2180314
14. Mohammad, S., A. Nezhad, H. R. Hassani, and A. Foudazi, "A dual-band WLAN/UWB printed wide slot antenna for mimo/diversity applications," Microw. Opt. Technol. Lett., Vol. 55, 461-465, 2013.
doi:10.1002/mop.27391
15. Gogosh, N., M. F. Shafique, R. Saleem, I. Usman, and A. M. Faiz, "An UWB diversity antenna array with a novel H-type decoupling structure," Microw. Opt. Technol. Lett., Vol. 55, 2715-2720, 2013.
doi:10.1002/mop.27941
16. Liu, J., K. P. Esselle, S. G. Hay, S. Zhu, and S. Zhong, "A compact super-wideband antenna pair with polarization diversity," IEEE Antennas and Wireless Propagation Letters, Vol. 12, 1472-1475, 2013.
doi:10.1109/LAWP.2013.2287500
17. See, C. H., H. I. Hraga, J. M. Noras, R. A. Abd-Alhameed, and N. J. McEwan, "Compact multiple input and multiple output/diversity antenna for portable and mobile ultra-wideband applications," IET Microwaves, Antennas & Propagation, Vol. 7, No. 6, 444-451, Apr. 23, 2013.
doi:10.1049/iet-map.2012.0574
18. Li, L., S. W. Cheung, and T. I. Yuk, "Compact MIMO antenna for portable devices in UWB applications," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 8, 4257-4264, Aug. 2013.
doi:10.1109/TAP.2013.2263277
19. Koohestani, M., A. A. Moreira, and A. K. Skrivervik, "A novel compact CPW-fed polarization diversity ultrawideband antenna," IEEE Antennas and Wireless Propagation Letters, Vol. 13, 563-566, 2014.
doi:10.1109/LAWP.2014.2312730
20. Wang, L., L. Xu, X. Chen, R. Yang, L. Han, and W. Zhang, "A compact ultrawideband diversity antenna with high isolation," IEEE Antennas and Wireless Propagation Letters, Vol. 13, 35-38, 2014.
doi:10.1109/LAWP.2013.2295414
21. Zhao, H., F. Zhang, C. Wang, and X. Zhang, "A universal methodology for designing a UWB diversity antenna," Journal of Electromagnetic Waves and Applications, Vol. 28, No. 10, 1221-1235, 2014.
doi:10.1080/09205071.2014.911667
22. Yoon, H. K., Y. J. Yoon, H. Kim, and C.-H. Lee, "Flexible ultra-wideband polarisation diversity antenna with band-notch function," IET Microwaves, Antennas & Propagation, Vol. 5, No. 12, 1463-1470, Sep. 16, 2011.
doi:10.1049/iet-map.2010.0126
23. Lee, J.-M., K.-B. Kim, H.-K. Ryu, and J.-M. Woo, "A compact ultra wideband MIMO antenna with WLAN band-rejected operation for mobile devices," IEEE Antennas and Wireless Propagation Letters, Vol. 11, 990-993, 2012.
24. Chacko, B. P., G. Augustin, and T. A. Denidni, "Uniplanar slot antenna for ultra wideband polarization-diversity applications," IEEE Antennas and Wireless Propagation Letters, Vol. 12, 88-91, 2013.
doi:10.1109/LAWP.2013.2242841
25. Chacko, B. P., G. Augustin, and T. A. Denidni, "Uniplanar polarisation diversity antenna for ultra wideband systems," Microwaves, Antennas & Propagation, IET, Vol. 7, No. 10, 851-857, Jul. 16, 2013.
doi:10.1049/iet-map.2012.0732
26. Natarajamani, S., S. K. Behera, and S. K. Patra, "A compact planar diversity antenna for ultra-wideband application with band-notched function," Microw. Opt. Technol. Lett., Vol. 55, 758-762, 2013.
doi:10.1002/mop.27435
27. Gao, P., S. He, X. Wei, Z. Xu, N. Wang, and Y. Zheng, "Compact printed UWB diversity slot antenna with 5.5-GHz band-notched characteristics," IEEE Antennas and Wireless Propagation Letters, Vol. 13, 376-379, 2014.
doi:10.1109/LAWP.2014.2305772
28. Blanch, S., J. Romeu, and I. Corbella, "Exact representation of antenna system diversity performance from input parameter description," IEE Elect. Lett., Vol. 39, No. 9, 705-707, May 2003.
doi:10.1049/el:20030495