Quad‐Band Transmissive Metasurface with Linear to Dual‐Circular Polarization Conversion Simultaneously

Abstract

Metasurface is a momentous periodic or aperiodic microstructure which has capabilities in controlling polarization of electromagnetic waves. To realize polarization controlling, many microstructures have been designed to achieve the function. However, multi-band linear to dual-circular polarization converter is rarely proposed and designed in the last few years. Here, a quad-band dual-circular transmissive metasurface (QCT-MS) is proposed to manipulate polarization of transmissive wave. QCT-MS is designed as a three-layer microstructure, with substrate in the middle and two metal patches in the shape of bi-symmetrical arrow on both sides. The proposed microstructure manipulates linear polarization waves to dual-circular polarization waves in different frequency bands with x-polarized or y-polarized incident waves. The experimental and simulated results reveal that left-hand circularly polarized waves can be realized in 3.14-3.32, 4.41-4.46, and 14.82-16.05 GHz while the right-hand circularly polarized waves can be achieved from 9.45 to 10.12 GHz for QCT-MS with x-polarized incidences. Moreover, the simulated results also demonstrate its characteristics of wide-angle transmission and periodic changes. The proposed transmissive metasurface can be utilized in multiband communication and multifunctional dual-circularly polarized antenna systems.

Efficient asymmetric transmission for wide incidence angles using chiral s plit‐ring‐resonators

“…The ability of metasurface to control the phase and amplitude of the EM waves has enabled researchers to exploit its potential for polarization manipulation. A variety of linear/circular polarization rotators are designed using anisotropic metasurfaces, 1,2 chiral metasurfaces (lacking mirror symmetry), 3 and programmable metasurfaces 4‐6 . Peiffer and Grbic 7 presented a bianisotropic Metasurface for polarization control.…”

“…A variety of linear/circular polarization rotators are designed using anisotropic metasurfaces, 1,2 chiral metasurfaces (lacking mirror symmetry), 3 and programmable metasurfaces. [4][5][6] Peiffer and Grbic 7 presented a bianisotropic Metasurface for polarization control. Half and quarter-wave plate anisotropic surfaces are presented and discussed in References [8,9], whereas References [10][11][12] present some broadband and dual band surfaces for linear and circular polarization conversion with anisotropic property.…”

A low‐profile ultrawideband circularly polarized slot antenna array based on artificial magnetic conductor array reflector

“…Therefore, many antenna designs have adopted the technique of developing antenna arrays that can achieve stable broadband CP radiation with axial beam. [11][12][13][14][15][16][17][18][19][20] Especially with the change of frequency, the axial beam radiation characteristic of the pattern is very stable too.…”

“…Even though a CP antenna with a single radiator element has the advantage of small size, it usually cannot achieve a good axial beam radiation (main beam at boresight direction +z = 0°) across the entire CP bandwidth. Therefore, many antenna designs have adopted the technique of developing antenna arrays that can achieve stable broadband CP radiation with axial beam 11–20 . Especially with the change of frequency, the axial beam radiation characteristic of the pattern is very stable too.…”

A miniaturized transmission/absorption integrated frequency selection surface with ultra‐wide absorption band

“…In addition, it was employed to improve the performance of antenna, such as, enhancing directivity and bandwidth, 7–9 reconfiguring radiation patterns, 10 reducing mutual coupling, 11 rectifying phase error, 12 and so forth. Moreover, as a type of FSS, metasurface (MS) has aroused great research interest due to easy fabrication, low cost, and powerful functionality to manipulate the electromagnetic waves 13–15 . For example, absorptive MS has been designed for reducing radar cross‐section (RCS) 16 .…”