1. Trentini, G. V., "Partially reflecting sheet arrays," IRE Trans. Antennas Propagation, Vol. 4, 666-671, 1956.
doi:10.1109/TAP.1956.1144455        Google Scholar

2. Lovat, G., P. Burghignoli, and D. R. Jackson, "Fundamental properties and optimization of broadside radiation from uniform leaky-wave antennas," IEEE Trans. Antennas Propag., Vol. 54, 1442-1452, May 2006.
doi:10.1109/TAP.2006.874350        Google Scholar

3. Neto, A. and N. Llombart, "Wideband localization of the dominant leaky wave poles in dielectric covered antennas," IEEE Antennas and Wireless Propagation Letters, Vol. 5, No. 1, 549-551, Dec. 2006.
doi:10.1109/LAWP.2006.889558        Google Scholar

4. Swillam, M. A., R. H. Gohary, M. H. Bakr, and X. Li, "Efficient approach for sensitivity analysis of lossy and leaky structures using FDTD," Progress In Electromagnetics Research, Vol. 94, 197-212, 2009.
doi:10.2528/PIER09061708        Google Scholar

5. Kim, D. and J.-I. Choi, "Analysis of a high-gain Fabry-Perot cavity antenna with an FSS superstrate: Effective medium approach," Progress In Electromagnetics Research Letters, Vol. 7, 59-68, 2009.
doi:10.2528/PIERL09011801        Google Scholar

6. Sternberg, N. and A. I. Smolyakov, "Resonant transparency of a three-layer structure containing the dense plasma region," Progress In Electromagnetics Research, Vol. 99, 37-52, 2009.
doi:10.2528/PIER09091708        Google Scholar

7. Jackson, D. R. and A. A. Oliner, "A leaky-wave analysis of the high gain printed antenna configuration," IEEE Trans. Antennas Propagation, Vol. 36, No. 7, 905-910, 1988.
doi:10.1109/8.7194        Google Scholar

8. Feresidis, A. P., G. Goussetis, S. Wang, and J. C. Vardaxoglou, "Artificial magnetic conductor surfaces and their application to low profile high-gain planar antennas," IEEE Trans. Antennas Propag., Vol. 53, No. 1, 209-215, Jan. 2005.
doi:10.1109/TAP.2004.840528        Google Scholar

9. Yousefi, L., H. Attia, and O. M. Ramahi, "Broadband experimental characterization of artificial magnetic materials based on a microstrip line method," Progress In Electromagnetics Research, Vol. 90, 1-13, 2009.
doi:10.2528/PIER08121904        Google Scholar

10. Zhou, L., H. Li, Y. Qin, Z. Wei, and C. T. Chan, "Directive emissions from subwavelength metamaterial-based cavities," Applied Physics Letters, Vol. 86, 101101, Feb. 2005.
doi:10.1063/1.1881797        Google Scholar

11. Kelly, J. R., T. Kokkinos, and A. P. Feresidis, "Analysis and design of sub-wavelength resonant cavity type 2-D leaky-wave antennas," IEEE Trans. Antennas Propagation, Vol. 56, No. 9, 2817-2825, 2008.
doi:10.1109/TAP.2008.928791        Google Scholar

12. Zhao, J., Y. C. Jiao, F. Zhang, and X. Yang, "High gain circularly polarized antenna using sub-wavelength resonant cavity," Journal of Electromagnetic Waves and Applications, Vol. 24, No. 1, 33-40, 2010.
doi:10.1163/156939310790322109        Google Scholar

13. Costa, F., A. Monorchio, S. Talarico, and F. M. Valeri, "An active high impedance surface for low profile tunable and steerable antennas," IEEE Antennas and Wireless Propagation Letters, Vol. 7, 676-680, 2008.
doi:10.1109/LAWP.2008.2006070        Google Scholar

14. Luukkonen, O., C. R. Simovski, A. V. Räisänen, and S. A. Tretyakov, "An efficient and simple analytical model for analysis of propagation properties in impedance waveguides," IEEE Trans. on Microwave Theory and Techniques, Vol. 56, No. 7, 1624-1632, 2008.
doi:10.1109/TMTT.2008.925236        Google Scholar

15. Weily, A. R., T. S. Bird, and Y. J. Guo, "A reconfigurable high-gain partially reflecting surface antenna," IEEE Trans. on Antennas and Propagation, Vol. 56, No. 11, 3382-3390, Nov. 2008.
doi:10.1109/TAP.2008.2005538        Google Scholar

16. Costa, F., E. Carrubba, A. Monorchio, and G. Manara, "Multi-frequency highly directive Fabry-Perot based antenna," Proc. IEEE International Symposium on Antennas and Propagation, 4-8, San Diego, CA, 2009.        Google Scholar

17. Aydın, E., "Computation of a tunable slot-loaded equilateral triangular microstrip antenna," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 14-15, 2001-2009, 2009.
doi:10.1163/156939309789932548        Google Scholar

18. Wu, X. H., A. A. Kishk, and A. W. Glisson, "A transmission line method to compute the far-field radiation of arbitrarily directed Hertzian dipoles in multilayer dielectric structure: Theory and applications," IEEE Trans. on Antennas and Propagation, Vol. 54, No. 10, 2731-2741, 2006.
doi:10.1109/TAP.2006.882164        Google Scholar

19. Luukkonen, O., C. Simovski, G. Granet, G. Goussetis, D. Lioubtchenko, A. V. Räisänen, and S. A. Tretyakov, "Simple and accurate analytical model of planar grids and high-impedance surfaces comprising metal strips or patches," IEEE Trans. on Antennas and Propagation, Vol. 56, No. 6, 1624-1632, 2008.
doi:10.1109/TAP.2008.923327        Google Scholar

20. Zhao, T., D. R. Jackson, J. T. Williams, H. D. Yang, and A. A. Oliner, "2-D periodic leaky-wave antennas --- Part I: Metal patch design," IEEE Trans. Antennas Propagation, Vol. 53, No. 11, 3505-3514, 2005.
doi:10.1109/TAP.2005.858579        Google Scholar

21. Tretyakov, S., Analytical Modelling in Applied Electromagnetics, Artech House, Boston, 2003.

22. Costa, F., A. Monorchio, and G. Manara, "Analysis and design of ultra thin electromagnetic absorbers comprising resistively loaded high impedance surfaces," IEEE Trans. on Antennas and Propagation, Vol. 58, No. 5, 1551-1558, 2010.
doi:10.1109/TAP.2010.2044329        Google Scholar

23. Vu, T.-H., S. Collardey, A.-C. Tarot, and K. Mahdjoubi, "Input impedance of Fabry-Perot, EBG and leaky-wave antennas excited by a line source," IEEE Antennas and Wireless Propagation Letters, Vol. 8, 248-252, 2009.
doi:10.1109/LAWP.2009.2013883        Google Scholar

24. Pirhadi, A., M. Hakkak, and F. Keshmiri, "Using electromagnetic bandgap superstrate to enhance the bandwidth of probe-fed microstrip antenna," Progress In Electromagnetics Research, Vol. 61, 215-230, 2006.
doi:10.2528/PIER06021801        Google Scholar

25. Zhang, J. C., Y. Z. Yin, and S. F. Zheng, "Double screen FSSs with multi-resonant elements for multiband, broadband applications," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 16, 2209-2218, 2009.
doi:10.1163/156939309790109333        Google Scholar

26. Zhang, J.-C., Y.-Z. Yin, and J.-P. Ma, "Design of narrow band-pass frequency selective surfaces for millimeter wave applications," Progress In Electromagnetics Research, Vol. 96, 287-298, 2009.
doi:10.2528/PIER09081702        Google Scholar

27. Schantz, H. G., "Planar elliptical element ultra-wideband dipole antennas," IEEE AP-S Int. Symp. Dig., Vol. 3, 44-47, San Antonio, TX, Jun. 2002.        Google Scholar

28. Costa, F., A. Monorchio, and G. Manara, "Low-profile tunable and steerable Fabry-Perot antenna for software defined radio applications," IEEE International Symposium on Antennas and Propag., Toronto, Canada, Jul. 11-17, 2010.        Google Scholar

29. Haykin, S., "Cognitive radio: Brain-empowered wireless communications," IEEE J. Sel. Areas Commun., Vol. 23, No. 2, 201-220, Feb. 2005.
doi:10.1109/JSAC.2004.839380        Google Scholar

30. Jorswieck, E. A. and R. Mochaourab, "Beamforming in underlay cognitive radio: Null-shaping constraints and greedy user selection," Proc. CROWNCOM, 2010, 5th international Conference on Cognitive Radio Oriented Wireless Networks and Communications, 1-5, 2010.        Google Scholar