1. Balanis, C., Antenna Theory: Analysis and Design, Wiley Inter science, 2005.
2. Van Lil, E. H. and A. R. Van de Capelle, "Transmission-line model for mutual coupling between microstrip antennas," IEEE Transaction on Antennas Propagation, Vol. 32, No. 8, 816-821, 1984.
doi:10.1109/TAP.1984.1143416
3. Malkomes, K., "Mutual coupling between microstrip patch antennas," Electronic Letters, Vol. 18, No. 12, 520-522, 1982.
doi:10.1049/el:19820353
4. Penard, E. and J. P. Daniel, "Mutual coupling between microstrip antennas," Electronics Letters, Vol. 18, No. 14, 605-607, 1982.
doi:10.1049/el:19820415
5. Yu, A. and X. Zhang, "A novel method to improve the performance of microstrip antenna arrays using a dumbbell EBG structure," IEEE Antennas Wireless Propagation Letters, Vol. 2, No. 1, 170-172, 2003.
doi:10.1109/LAWP.2003.814773
6. Suntives, A. and R. Abhari, "Miniaturization and isolation improvement of a multiple-patch antenna system using electromagnetic band gap structures," Microwave and Optical Technology Letters, Vol. 55, No. 7, 1609-1612, 2013.
doi:10.1002/mop.27621
7. Farahani, H. S., M. Veysi, M. Kamyab, and A. Tadjalli, "Mutual coupling reduction in patch antenna arrays using a UC-EBG superstate," IEEE Antennas Wireless Propagation Letters, Vol. 9, 57-59, 2010.
doi:10.1109/LAWP.2010.2042565
8. Islam, M. T. and M. S. Alam, "Compact EBG structure for alleviating mutual coupling between patch antenna array elements," Progress In Electromagnetics Research, Vol. 137, 425-438, 2013.
doi:10.2528/PIER12121205
9. Zhu, F. G., J. D. Xu, and Q. Xu, "Reduction of mutual coupling between closely packed antenna lements using defected ground structure," Electronics Letters, Vol. 45, No. 12, 601-602, 2012.
doi:10.1049/el.2009.0985
10. Farsi, S., D. Schreurs, and B. Nauwelaers, "Mutual coupling reduction of planar antenna by using a simple microstrip u-section," IEEE Antennas and Wireless Propagation Letters, Vol. 11, 1501-1503, 2012.
doi:10.1109/LAWP.2012.2232274
11. Alsath, M. G., M. Kanagasabai, and B. Balasubramanian, "Implementation of slotted meander line resonators for isolation enhancement in microstrip patch antenna arrays," IEEE Antennas and Wireless Propagation Letters, Vol. 12, 15-18, 2013.
doi:10.1109/LAWP.2012.2237156
12. Ghosh, C. K. and S. K. Parui, "Reduction of mutual coupling between E-shaped microstrip antennas by using a simple microstrip I-section," Microwave and Optical Technology Letters, Vol. 55, No. 11, 2544-2549, 2013.
doi:10.1002/mop.27928
13. OuYang, J., F. Yang, and Z. M. Wang, "Reduction of mutual coupling of closely spaced microstrip MIMO antennas for WLAN application," IEEE Antennas Wireless Propagation Letters, Vol. 10, 310-312, 2011.
doi:10.1109/LAWP.2011.2140310
14. Suwailam, M. M. B., O. F. Siddiqui, and O. M. Ramahi, "Mutual coupling reduction between microstrip patch antennas using slotted-complementary split-ring resonators," IEEE Antennas Wireless Propagation Letters, Vol. 9, 876-878, 2010.
doi:10.1109/LAWP.2010.2074175
15. Shafique, M. F., Z. Qamar, L. Riaz, R. Saleem, and S. A. Khan, "Coupling suppression in densely packed microstrip arrays using metamaterial structure," Microwave and Optical Technology Letters, Vol. 57, No. 3, 759-763, 2015.
doi:10.1002/mop.28943
16. Zuo, S. L., Y. Z. Yin, W. J. Wu, Z. Y. Zhang, and J. Ma, "Investigations of reduction of mutual coupling between two planar monopoles using λ/4 slots," Progress in Electromagnetic Research Letters, Vol. 19, 9-18, 2010.
doi:10.2528/PIERL10100609
17. Yang, X. M., X. G. Liu, X. Y. Zhu, and T. J. Cui, "Reduction of mutual coupling between closely packed patch antenna using waveguide metamaterials," IEEE Antennas and Wireless Propagation Letters, Vol. 11, 389-391, 2012.
doi:10.1109/LAWP.2012.2193111
18. Xu, H. X., G. M. Wang, and M. Q. Qi, "Hilbert-shaped magnetic waveguided metamaterials for electromagnetic coupling reduction of microstrip antenna array," IEEE Transactions on Magnetics, Vol. 49, No. 4, 1526-1529, 2013.
doi:10.1109/TMAG.2012.2230272
19. Qamar, Z. and H. C. Park, "Compact waveguided metamaterials for suppression of mutual coupling in microstrip array," Progress In Electromagnetic Research, Vol. 149, 183-192, 2014.
doi:10.2528/PIER14063002
20. Sarkar, D., A. Singh, K. Saurav, and K. V. Srivastava, "Four-element quad-band multiple-input-multiple-output antenna employing split-ring resonator and inter-digital capacitor," IET Microwaves Antennas & Propagation, Vol. 9, No. 13, 1453-1460, 2015.
doi:10.1049/iet-map.2015.0189
21. HFSS ver. 14, Ansoft Corporation, , Pittsburgh.
22. Ansoft Designer ver. 2.2.0, Ansoft Corporation, .