Wideband Focusing Gradient Meta-surface for High-gain Planar Lens Antenna Application

A broadband transmitting focusing gradient meta-surface (FGMS) has been designed, which is used in application of lens antenna. The element of FGMS is composed of four metallic layers separated by three layers of dielectric, which can achieve high transmitting efficiencies and sufficient phase compensation in the wide operating band. The antennas are placed the focus of FGMS to build a broadband planar lens antenna system. The simulation results show that the lens achieves a gain of 15.6 dBi and achieves 8.44 dB higher than the bare patch antenna at 9.1 GHz. Furthermore, it enhanced the gain of the bare patch antenna from 8.2 GHz to 10 GHz.

[1]  He-Xiu Xu,et al.  Ultra-Thin Polarization Beam Splitter Using 2-D Transmissive Phase Gradient Metasurface , 2015, IEEE Transactions on Antennas and Propagation.

[2]  Guangming Wang,et al.  X-Band Phase-Gradient Metasurface for High-Gain Lens Antenna Application , 2015, IEEE Transactions on Antennas and Propagation.

[3]  Anthony Grbic,et al.  Bianisotropic Metasurfaces for Optimal Polarization Control: Analysis and Synthesis , 2014 .

[4]  Daniel W. van der Weide,et al.  Wideband plasmonic focusing metasurfaces , 2014 .

[5]  Yongfeng Li,et al.  Wideband radar cross section reduction using two-dimensional phase gradient metasurfaces , 2014 .

[6]  Zahra Atlasbaf,et al.  Design and Implementation of a Dual-Band Single Layer Reflectarray in X and K Bands , 2014, IEEE Transactions on Antennas and Propagation.

[7]  Young Joong Yoon,et al.  Single-layer reflectarray with combination of element types , 2014 .

[8]  Atef Z. Elsherbeni,et al.  Transmitarray Antenna Design Using Cross-Slot Elements With No Dielectric Substrate , 2014, IEEE Antennas and Wireless Propagation Letters.

[9]  A. Alú,et al.  Full control of nanoscale optical transmission with a composite metascreen. , 2013, Physical review letters.

[10]  Yang Cao,et al.  Highly efficient beam steering with a transparent metasurface. , 2013, Optics express.

[11]  N. Behdad,et al.  Wideband Planar Microwave Lenses Using Sub-Wavelength Spatial Phase Shifters , 2011, IEEE Transactions on Antennas and Propagation.