Wideband Metasurface-Based Reflective Polarization Converter for Linear-to-Linear and Linear-to-Circular Polarization Conversion

A wideband reflective polarization converter based on metasurface is proposed in this letter. This converter can transform a linearly polarized (LP) incident electromagnetic (EM) wave into its orthogonal LP reflection wave in a lower band, and a circularly polarized (CP) reflection wave in a higher band. The unit cell of this converter is comprised of two meander lines and one cut wire printed on a dielectric substrate, backed with metallic ground sheet. The simulation results show that the <italic>y</italic>/<italic>x</italic>-polarized incident EM wave can be converted to the <italic>x/y</italic>-polarized reflected wave over a fractional bandwidth of 59.6% from 6.53 to 12.07 GHz with a polarization conversion ratio over 0.88. Besides, the <italic>y</italic>/<italic>x </italic>-polarized incident EM wave is converted to a CP reflected wave from 13.70 to 15.60 GHz (a fractional bandwidth of 13.0%). To verify the polarization conversion performance, a sample consisting of 30 × 30 unit cells is fabricated and measured. The experimental and simulation results obtained are in a reasonable agreement, which verifies the properties of the design.

[1]  Chenjiang Guo,et al.  Design of broadband circularly polarized reflectarray with linearly polarized feed , 2016, 2016 Asia-Pacific Microwave Conference (APMC).

[2]  L. Deng,et al.  Ultra-Thin Reflective Metamaterial Polarization Rotator Based on Multiple Plasmon Resonances , 2015, IEEE Antennas and Wireless Propagation Letters.

[3]  T. Jiang,et al.  Manipulating electromagnetic wave polarizations by anisotropic metamaterials. , 2007, Physical review letters.

[4]  Yang Yang,et al.  Broadband reflective multi-polarization converter based on single-layer double-L-shaped metasurface , 2017 .

[5]  D. R. Chowdhury,et al.  Terahertz Metamaterials for Linear Polarization Conversion and Anomalous Refraction , 2013, Science.

[6]  Tie Jun Cui,et al.  Dual-band asymmetric transmission of linear polarization in bilayered chiral metamaterial , 2013 .

[7]  Jiafu Wang,et al.  Ultra-wideband polarization conversion metasurfaces based on multiple plasmon resonances , 2014 .

[8]  Jiafu Wang,et al.  Broadband polarization rotator based on multi-order plasmon resonances and high impedance surfaces , 2013 .

[9]  Y. Liu,et al.  Ultra-wideband and high-efficiency polarization rotator based on metasurface , 2016 .

[10]  A. Tünnermann,et al.  Asymmetric transmission of linearly polarized light at optical metamaterials. , 2010, Physical review letters.

[11]  Xu Han,et al.  Ultrawideband and High-Efficiency Linear Polarization Converter Based on Double V-Shaped Metasurface , 2015, IEEE Transactions on Antennas and Propagation.

[12]  T. I. Yuk,et al.  Linear-to-Circular Polarization Conversion Using Metasurface , 2013, IEEE Transactions on Antennas and Propagation.

[13]  Weili Zhang,et al.  Manipulating polarization states of terahertz radiation using metamaterials , 2012 .

[14]  Tie Jun Cui,et al.  Metamaterial polarizers by electric-field-coupled resonators , 2008 .

[15]  Lin Zheng,et al.  Achieving wide-band linear-to-circular polarization conversion using ultra-thin bi-layered metasurfaces , 2015 .

[16]  Wideband and high efficiency reflective polarization rotator based on metasurface , 2018 .

[17]  Hon Tat Hui,et al.  Polarisation rotation reflective surface based on artificial magnetic conductor and its application , 2014 .

[18]  Tie Jun Cui,et al.  Broadband circular and linear polarization conversions realized by thin birefringent reflective metasurfaces , 2014 .

[19]  A. K. Azad,et al.  Terahertz metamaterial with asymmetric transmission , 2009, 0908.2524.

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

[21]  Guy A. E. Vandenbosch,et al.  Compact circular polarizer based on chiral twisted double split-ring resonator , 2013 .

[22]  Sailing He,et al.  90° polarization rotator using a bilayered chiral metamaterial with giant optical activity , 2010 .

[23]  Lei Wang,et al.  Ultra-wideband high-efficiency reflective linear-to-circular polarization converter based on metasurface at terahertz frequencies. , 2017, Optics express.

[24]  Xiangyu Cao,et al.  Broadband Metamaterial Reflectors for Polarization Manipulation based on Cross/Ring Resonators , 2016 .