1. Alu, A., F. Bilotti, N. Engheta, and L. Vegni, "Metamaterial covers over a small aperture," IEEE Trans. Antennas Propag., Vol. 54, No. 6, 1632-1643, June 2006.
doi:10.1109/TAP.2006.875470
2. Enoch, S., G. Tayeb, P. Sabouroux, N. Guerin, and P. Vincent, "A metamaterial for directive emission," Physical Review Letters,, Vol. 89, 213902, 2002.
doi:10.1103/PhysRevLett.89.213902
3. Xu, H., Z. Zhao, Y. Lv, C. Du, and X. Luo, "Metamaterial superstrate and electromagnetic band-gap substrate for high directive antenna," Int. J. Infrared Milli. Waves, Vol. 29, 493-498, 2008.
doi:10.1007/s10762-008-9344-y
4. Huang, C., Z. Zhao, W. Wang, and X. Luo, "Dual band dual polarization directive patch antenna using rectangular metallic grids metamaterial," Int. J. Infrared Milli. Terahz Waves, Vol. 30, 700-708, 2009.
doi:10.1007/s10762-009-9496-4
5. Semichaevsky, A. and A. Akyurtlu, "Homogenization of metamaterial-loaded substrates and superstrates for antennas," Progress In Electromagnetics Research, Vol. 71, 129-147, 2007.
doi:10.2528/PIER07021001
6. Yang, F. and Y. Rahmat-Samii, "A low profile single dipole antenna radiating circularly polarized waves," IEEE Trans. Antennas Propag., Vol. 53, No. 9, 6-3083, 2005.
7. Yang, F. and Y. Rahmat-Samii, "Polarization-dependent electro-magnetic bandgap surfaces: Characterization, designs, and applications," IEEE AP-S Dig3, 339-342, 2003.
8. Veysi, M., M. Kamyab, S. M. Mousavi, and A. Jafargholi, "Wideband miniaturized polarization-dependent HIS incorporating metamaterials," IEEE Antennas and Wireless Propagation Letters, Vol. 9, 2010.
9. Yang, F. and Y. Rahmat-Samii, Electromagnetic Band Gap Structures in Antenna Engineering, Cambridge University Press, 2009.
10. Iriarte, J. C., I. Ederra, R. Gonzalo, A. Gosh, J. Laurin, C. Caloz, Y. Brand, M. Gavrilovic, and Y. P. de Demers, "EBG superstrate for gain enhancement of a circularly polarized patch antenna," IEEE APS, 2993-2996, 2006.
11. Chaimool, S., K. L. Chung, and P. Akkaraekthalin, "Simultaneous gain and bandwidths enhancement of a single-feed circularly polarized microstrip patch antenna using a metamaterial reflective surface," Progress In Electromagnetics Research B, Vol. 22, 23-37, 2010.
doi:10.2528/PIERB10031901
12. Diblanc, M., E. Rodes, E. Amaud, M. Thevenot, T. Monediere, and B. Jecko, "Circularly polarized metallic EBG antenna," IEEE Microwave and Wireless Components Letters, Vol. 15, No. 10, 638-640, 2005.
doi:10.1109/LMWC.2005.856689
13. Arnaud, E., R. Chantalat, M. Koubeissi, C. Menudier, T. Monediere, M. Thevenot, and B. Jecko, "New process of circularly polarized EBG antenna by using meander lines," IET EuCAP, 1-6, 2007.