Low cost and thin metasurface for ultra wide band and wide angle polarization insensitive radar cross section reduction

A planar low cost and thin metasurface is proposed to achieve ultra-wideband radar cross section (RCS) reduction with stable performance with respect to polarization and incident angles. This metasurface is composed of two different artificial magnetic conductor unit cells arranged in a chessboard like configuration. These unit cells have a Jerusalem cross pattern with different thicknesses, which results in wideband out-phase reflection and RCS reduction, consequently. The designed metasurface reduces RCS more than 10-dB from 13.6 GHz to 45.5 GHz (108% bandwidth) and more than 20-dB RCS from 15.2 GHz to 43.6 GHz (96.6%). Moreover, the 10-dB RCS reduction bandwidth is very stable (more than 107%) for both TE and TM polarizations. The good agreement between simulations and measurement results proves the design, properly. The ultra-wide bandwidth, low cost, low profile, and stable performance of this metasurface prove its high capability compared with the state-of-the-art references.A planar low cost and thin metasurface is proposed to achieve ultra-wideband radar cross section (RCS) reduction with stable performance with respect to polarization and incident angles. This metasurface is composed of two different artificial magnetic conductor unit cells arranged in a chessboard like configuration. These unit cells have a Jerusalem cross pattern with different thicknesses, which results in wideband out-phase reflection and RCS reduction, consequently. The designed metasurface reduces RCS more than 10-dB from 13.6 GHz to 45.5 GHz (108% bandwidth) and more than 20-dB RCS from 15.2 GHz to 43.6 GHz (96.6%). Moreover, the 10-dB RCS reduction bandwidth is very stable (more than 107%) for both TE and TM polarizations. The good agreement between simulations and measurement results proves the design, properly. The ultra-wide bandwidth, low cost, low profile, and stable performance of this metasurface prove its high capability compared with the state-of-the-art references.

[1]  R. Gonzalo,et al.  Thin AMC Structure for Radar Cross-Section Reduction , 2007, IEEE Transactions on Antennas and Propagation.

[2]  Y. Álvarez-López,et al.  A Novel Approach for RCS Reduction Using a Combination of Artificial Magnetic Conductors , 2010 .

[3]  C. Balanis,et al.  Novel Design of Ultrabroadband Radar Cross Section Reduction Surfaces Using Artificial Magnetic Conductors , 2017, IEEE Transactions on Antennas and Propagation.

[4]  Mohammad-Javad Haji-Ahmadi,et al.  Pixelated Checkerboard Metasurface for Ultra-Wideband Radar Cross Section Reduction , 2017, Scientific Reports.

[5]  Seyed Hassan Esmaeli,et al.  Wideband radar cross-section reduction by AMC , 2016 .

[6]  K. Sarabandi,et al.  Wideband, Wide Angle, Polarization Independent RCS Reduction Using Nonabsorptive Miniaturized-Element Frequency Selective Surfaces , 2014, IEEE Transactions on Antennas and Propagation.

[7]  M. Islam,et al.  Tree-shaped fractal meta-surface with left-handed characteristics for absorption application , 2018 .

[8]  C. Balanis,et al.  Checkerboard EBG Surfaces for Wideband Radar Cross Section Reduction , 2015, IEEE Transactions on Antennas and Propagation.

[9]  R. Gonzalo,et al.  Broadband Radar Cross-Section Reduction Using AMC Technology , 2013, IEEE Transactions on Antennas and Propagation.

[10]  Somak Bhattacharyya,et al.  An Ultrawideband Ultrathin Metamaterial Absorber Based on Circular Split Rings , 2015, IEEE Antennas and Wireless Propagation Letters.

[11]  Gholamreza Dadashzadeh,et al.  Broadband RCS reduction using a novel double layer chessboard AMC surface , 2016 .

[12]  Jin-Song Hong,et al.  An ultrathin and broadband metamaterial absorber using multi-layer structures , 2013 .

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