1. Yu, N. F., P. Genevet, M. A. Kats, F. Aieta, J. P. Tetienne, F. Capasso, and Z. Gaburro, "Light propagation with phase discontinuities: Generalized laws of reflection and refraction," Science, Vol. 334, 333-338, 2011.
doi:10.1126/science.1210713        Google Scholar

2. Ni, X., N. K. Emani, A. V. Kildishev, A. Boltasseva, and V. M. Shalaev, "Broadband light bending with plasmonic nanoantennas," Science, Vol. 335, 427, 2013.
doi:10.1126/science.1214686        Google Scholar

3. Pfeiffer, C. and A. Grbic, "Metamaterial Huygens’ surface: Tailoring wave fronts with reflectionless sheet ," Phys. Rev. Lett., Vol. 110, 197401, 2013.
doi:10.1103/PhysRevLett.110.197401        Google Scholar

4. Xu, H. X., G. M. Wang, T. Cai, J. Xiao, and Y. Q. Zhuang, "Tunable Pancharatnam-Berry metasurface for dynamical and high-efficiency anomalous reflection," Opt. Express, Vol. 24, 27836-27848, 2016.
doi:10.1364/OE.24.027836        Google Scholar

5. Wong, J. P. S., M. Selvanayagam, and G. V. Eleftheriades, "Polarization considerations for scalar Huygens metasurfaces and characterization for 2-D refraction," IEEE Trans. Microw. Theory Techn., Vol. 63, 913-924, 2015.
doi:10.1109/TMTT.2015.2392931        Google Scholar

6. Pfeiffer, C., N. K. Emani, A. M. Shaltout, A. Boltasseva, V. M. Shalaev, and A. Grbic, "Efficient light bending with isotropic metamaterial Huygens’ surfaces," Nano Lett., Vol. 14, 2491-2497, 2014.
doi:10.1021/nl5001746        Google Scholar

7. Pors, A., O. Albrektsen, I. P. Radko, and S. I. Bozhevolnyi, "Gap plasmon-based metasurfaces for total control of reflected light," Sci. Rep., Vol. 3, 2155, 2013.
doi:10.1038/srep02155        Google Scholar

8. Ma, H. F., G. Z. Wang, G. S. Kong, and T. J. Cui, "Independent controls of differently-polarized reflected waves by anisotropic metasurfaces," Sci. Rep., Vol. 5, 9605, 2015.
doi:10.1038/srep09605        Google Scholar

9. Farahani, M. F. and H. Mosallaei, "Birefringent reflectarray metasurface for beam engineering in infrared," Opt. Lett., Vol. 38, 462-464, 2013.
doi:10.1364/OL.38.000462        Google Scholar

10. Sun, S. L., Q. He, S. Y. Xiao, Q. Xu, X. Li, and L. Zhou, "Gradient-index meta-surfaces as a bridge linking propagating waves and surface waves," Nat. Mater., Vol. 11, 426-431, 2012.
doi:10.1038/nmat3292        Google Scholar

11. Sun, W., Q. He, S. Sun, and L. Zhou, "High-efficiency surface plasmon meta-couplers: Concept and microwave-regime realizations," Light Sci. Appl., Vol. 5, e16003, 2016.
doi:10.1038/lsa.2016.3        Google Scholar

12. Yu, S., L. Li, G. Shi, C. Zhu, X. Zhou, and Y. Shi, "Design, fabrication, and measurement of reflective metasurface for orbital angular momentum vortex wave in radio frequency domain," Appl. Phys. Lett., Vol. 108, 121903, 2016.
doi:10.1063/1.4944789        Google Scholar

13. Yu, S., L. Li, G. Shi, C. Zhu, and Y. Shi, "Generating multiple orbital angular momentum vortex beams using a metasurface in radio frequency domain," Appl. Phys. Lett., Vol. 108, 241901, 2016.
doi:10.1063/1.4953786        Google Scholar

14. Huang, Y. W., W. T. Chen, W. Y. Tsai, P. C. Wu, C. M. Wang, G. Sun, and D. P. Tsai, "Aluminum plasmonic multicolor meta-hologram," Nano Lett., Vol. 15, 3122-3127, 2015.
doi:10.1021/acs.nanolett.5b00184        Google Scholar

15. Huang, L., X. Chen, H. M. hlenbernd, H. Zhang, S. Chen, B. Bai, Q. Tan, G. Jin, K. W. Cheah, C. W. Qiu, J. Li, T. Zentgraf, and S. Zhang, "Three-dimensional optical holography using a plasmonic metasurface," Nat. Commun., Vol. 4, 2808, 2013.
doi:10.1038/ncomms3808        Google Scholar

16. Chen, W. T., K. Y. Yang, C. M. Wang, Y. W. Huang, G. Sun, I. Chiang, C. Y. Liao, W. L. Hsu, H. T. Lin, S. Sun, L. Zhou, A. Q. Liu, and D. P. Tsai, "High-efficiency broadband meta-hologram with polarization-controlled dual images," Nano Lett., Vol. 14, 225-230, 2014.
doi:10.1021/nl403811d        Google Scholar

17. Wen, D., F. Yue, G. Li, G. Zheng, K. Chan, S. Chen, M. Chen, K. F. Li, P. W. H. Wong, K. W. Cheah, E. Y. B. Pun, S. Zhang, and X. Chen, "Helicity multiplexed broadband metasurface holograms," Nat. Commun., Vol. 6, 8241, 2015.
doi:10.1038/ncomms9241        Google Scholar

18. Zheng, G., H. Mühlenbernd, M. Kenney, G. Li, T. Zentgraf, and S. Zhang, "Metasurface holograms reaching 80% efficiency," Nat. Nanothchnol., Vol. 10, 296-298, 2015.
doi:10.1038/nnano.2015.26        Google Scholar

19. Pendry, J. B., "Negative refraction makes a perfect lens," Phys. Rev. Lett., Vol. 85, 3966, 2000.
doi:10.1103/PhysRevLett.85.3966        Google Scholar

20. Li, X., S. Xiao, B. Cai, Q. He, T. J. Cui, and L. Zhou, "Flat metasurfaces to focus electromagnetic waves in reflection geometry," Opt. Lett., Vol. 37, 4940-4942, 2012.
doi:10.1364/OL.37.004940        Google Scholar

21. Wan, X., X. Shen, Y. Luo, and T. J. Cui, "Planar bifunctional Luneburg-fisheye lens made of an anisotropic metasurface," Laser Photonics Rev., Vol. 8, 757-765, 2014.
doi:10.1002/lpor.201400023        Google Scholar

22. Milligan, T. A., Modern Antenna Design, 2nd Ed., Willey, 2005.
doi:10.1002/0471720615

23. Cutler, C. C., "Parabolic-antenna design for microwaves," Proc. IRE, Vol. 35, 1284-1294, 1947.
doi:10.1109/JRPROC.1947.233571        Google Scholar

24. Vigueras, M. G., J. L. Gomez-Tornero, G. Goussetis, A. R. Weily, and Y. J. Guo, "Efficient synthesis of 1-D Fabry-Perot antennas with low side-lobe levels," IEEE Antennas Wireless Propag. Lett., Vol. 11, 869-872, 2012.
doi:10.1109/LAWP.2012.2210182        Google Scholar

25. Li, H. P., G. M. Wang, H. X. Xu, T. Cai, and J. G. Liang, "X-band phase-gradient metasurface for high-gain lens antenna application," IEEE Transactions on Antennas and Propagation, Vol. 63, 5144-5149, 2015.
doi:10.1109/TAP.2015.2475628        Google Scholar

26. González-Ovejero, D., G. Minatti, G. Chattopadhyay, and S. Maci, "Multibeam by metasurface antennas," IEEE Transactions on Antennas and Propagation, Vol. 65, No. 6, 2923-2930, 2017.
doi:10.1109/TAP.2017.2670622        Google Scholar