1. Trentini, G. V., "Partially reflecting sheet arrays," IRE Trans. on Antennas and Propagation, Vol. 4, 666-671, Oct. 1956.
doi:10.1109/TAP.1956.1144455
2. Jackson, D. R. and N. G. Alexopoulos, "Gain enhancement methods for printed circuit antennas," IEEE Trans. on Antennas and Propagation, Vol. 33, No. 9, 976-987, Sep. 1985.
doi:10.1109/TAP.1985.1143709
3. Yang, H. Y. and N. G. Alexopoulos, "Gain enhancement methods for printed circuit antennas through multiple superstrates," IEEE Trans. on Antennas and Propagation, Vol. 35, No. 7, 860-863, Jul. 1987.
doi:10.1109/TAP.1987.1144186
4. Sievenpiper, D., L. Zhang, R. F. J. Broas, N. G. Alexopoulos, and E. Yablonovitch, "Highimpedance electromagnetic surfaces with a forbidden frequency band," IEEE Trans. on Microwave Theory and Technique, Vol. 47, No. 11, 2059-2074, Nov. 1999.
doi:10.1109/22.798001
5. Holloway, C. L., M. A. Mohamed, E. F. Kuester, and A. Dienstfrey, "Reflection and transmission properties of a metafilm: With an application to a controllable surface composed of resonant particles," IEEE Trans. on Electromagnetic Compatibility, Vol. 47, No. 4, 853-865, Jan. 2005.
doi:10.1109/TEMC.2005.853719
6. 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. on Antennas and Propagation, Vol. 53, No. 1, 209-214, Jan. 2005.
doi:10.1109/TAP.2004.840528
7. Zhou, L., H. Li, Y. Qin, Z. Wei, and C. T. Chan, "Directive emissions from subwavelength metamaterial-based cavities," Applied Physics Letters, Vol. 86, 2005.
doi:10.1063/1.1844039
8. Ourir, A., A. Lustrac, and J. Lourtioz, "All-metamaterial-based subwavelength cavities for ultrathin directive antennas," Applied Physics Letters, Vol. 88, 2006.
9. Yahiaoui, R., S. N. Burokur, and A. de Lustrac, "Enhanced directivity of ultra-thin metamaterialbased cavity antenna fed by multisource," Electronics Letters, Vol. 45, No. 16, 814-816, 2009.
doi:10.1049/el.2009.0641