Abstract
An ultrathin single-layer metasurface manifesting both linear cross-polarization conversion (CPC) and linear-to-circular polarization (LP-to-CP) conversion in X-band is presented in this research. The designed metasurface acts as a multifunctional metasurface achieving CPC over a fractional bandwidth of 31.6% (8–11 GHz) with more than 95% efficiency while linear-to-circular polarization conversion is realized over two frequency bands from 7.5–7.7 GHz and 11.5–11.9 GHz. Moreover, the overall optimized structure of the unit cell results in a stable polarization transformation against changes in the incidence angle up to 45° both for transverse-electric (TE) and transverse-magnetic (TM) polarizations. The proposed metasurface with simple structure, compact size, angular stability and multifunctional capability qualifies for many applications in communication and polarization manipulating devices.
Highlights
Polarization is an essential feature of electromagnetic (EM) waves representing the way in which electric field oscillates at some fixed point in space
Many cross-polarization conversion (x-to-y or y-to-x polarization conversion) anisotropic metasurface designs functioning in reflection mode have been reported in literature[28,29,30,31,32,33,34,35,36,37]
A broad band (2–3.5 GHz) polarization conversion anisotropic metasurface which is based on multiple plasmonic resonances has been proposed[28]
Summary
Polarization is an essential feature of electromagnetic (EM) waves representing the way in which electric field oscillates at some fixed point in space. Such a multifunctional device does help to miniaturize size of the system by substituting many components through a single multifunctional component and reduces the overall system complexity and cost In this regard, in very recent literature[41], a design has been proposed based on two-corner-cut square multi-ring unit cell achieving both CPC and LP-to-CP conversion (NUST), Islamabad, Pakistan. The designed metasurface does achieve efficient wideband CPC and dual-band LP-to-CP conversion in the x-band Both type of polarization conversions remain robust to the changes in the oblique incidence angle. All these functionalities are accomplished through a simple compact anisotropic design which can be fabricated with less cost
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
