A highly efficient low‐cost reflective anisotropic metasurface for linear to linearly cross‐ and circular‐polarization conversion

Abstract

In this research, a highly efficient single-layer reflective polarization converter based on anisotropic metasurface is proposed for microwave communications. The periodic design works in a dual-operation mode as a halfwave plate (cross-polarizer) and a quarter-wave plate (circular-polarizer) over multiple frequency bands. The unit-cell is comprised of coupled D-shaped resonators printed on a low-cost FR-4 substrate offering crosspolarization conversion (above −3 dB) over three frequency bands (6. 45-6.87, 9.94-11.34, and 15.99-18.60 GHz) with cross conversion efficiency higher than 90%. Moreover, the proposed metasurface can also work as a linear to circular polarizer over three bands . The design is further shown to be angularly stable for incidence angles up to 30 . The proposed design has been validated experimentally after fabrication.

Multifunction Cross Polarization Converter Based on Ultra-Thin Transmissive Chiral Metasurface in C and X Bands

“…In recent years, researches into the polarization of EM waves by metasurface have aroused considerable interest whether within the microwave region or in the optical spectrum [19][20][21][22][23][24][25][26][27]. In ultrawideband from 12.4 to 27.96 GHz, a dual-V shaped metasurface in reflection-type can accomplish cross-polarization conversion for linearly polarized irradiated waves [20].…”

“…In ultrawideband from 12.4 to 27.96 GHz, a dual-V shaped metasurface in reflection-type can accomplish cross-polarization conversion for linearly polarized irradiated waves [20]. Similarly, devices that functioned as LP to CP have also been exposed [21,22]. An effective polarization transformer based on reflective metasurface is studied [21], which can transform a linearly polarized light to linearly and circularly polarized lights over three frequency bands.…”

“…Similarly, devices that functioned as LP to CP have also been exposed [21,22]. An effective polarization transformer based on reflective metasurface is studied [21], which can transform a linearly polarized light to linearly and circularly polarized lights over three frequency bands. A dynamic optical metaparticle based on a microelectromechanical system (MEMS) has been demonstrated recently, to offer steerable polarization conversion and amplitude manipulation of the reflected lights with quick responses [23].…”