Realization of broadband cross-polarization conversion in transmission mode in the terahertz region using a single-layer metasurface

2015 ◽  
Vol 40 (13) ◽  
pp. 3185 ◽  
Author(s):  
Wenwei Liu ◽  
Shuqi Chen ◽  
Zhancheng Li ◽  
Hua Cheng ◽  
Ping Yu ◽  
...  
Keyword(s):  
Single Layer ◽  
Transmission Mode ◽  
Polarization Conversion ◽  
Cross Polarization ◽  
Terahertz Region

scholarly journals Simple design of efficient broadband multifunctional polarization converter for X-band applications

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Thi Kim Thu Nguyen ◽  
Thi Minh Nguyen ◽  
Hong Quang Nguyen ◽  
Thanh Nghia Cao ◽  
Dac Tuyen Le ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Incident Angle ◽  
Polarization Conversion ◽  
Simple Design ◽  
Cross Polarization ◽  
Polarization Converter ◽  
Frequency Bands ◽  
X Band ◽  
Cost Efficient ◽  
Patch Resonators

AbstractA simple design of a broadband multifunctional polarization converter using an anisotropic metasurface for X-band application is proposed. The proposed polarization converter consists of a periodic array of the two-corner-cut square patch resonators based on the FR-4 substrate that achieves both cross-polarization and linear-to-circular polarization conversions. The simulated results show that the polarization converter displays the linear cross-polarization conversion in the frequency range from 8 to 12 GHz with the polarization conversion efficiency above 90%. The efficiency is kept higher than 80% with wide incident angle up to 45°. Moreover, the proposed design achieves the linear-to-circular polarization conversion at two frequency bands of 7.42–7.6 GHz and 13–13.56 GHz. A prototype of the proposed polarization converter is fabricated and measured, showing a good agreement between the measured and simulated results. The proposed polarization converter exhibits excellent performances such as simple structure, multifunctional property, and large cost-efficient bandwidth and wide incident angle insensitivity in the linear cross polarization conversion, which can be useful for X-band applications. Furthermore, this structure can be extended to design broadband polarization converters in other frequency bands.

Broadband linear polarization conversion based on the coupling of bilayer metamaterials in the terahertz region

2017 ◽  
Vol 383 ◽  
pp. 310-315 ◽  
Author(s):  
Rui Xia ◽  
Xufeng Jing ◽  
Huihui Zhu ◽  
Weimin Wang ◽  
Ying Tian ◽  
...  
Keyword(s):  
Linear Polarization ◽  
Polarization Conversion ◽  
Terahertz Region

Broadband cross-polarization conversion metasurface based on cross-shaped resonators

2021 ◽  
Vol 127 (11) ◽  
Author(s):  
Zhaomei Liu ◽  
Bei Zhao ◽  
Chunhong Jiao ◽  
Lihua Zhao ◽  
Xingxing Han
Keyword(s):  
Polarization Conversion ◽  
Cross Polarization

scholarly journals Transparent Metasurface for Generating Microwave Vortex Beams with Cross-Polarization Conversion

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2448 ◽  
Author(s):  
Hongyu Shi ◽  
Luyi Wang ◽  
Mengran Zhao ◽  
Juan Chen ◽  
Anxue Zhang ◽  
...  
Keyword(s):  
Transmission Loss ◽  
Phase Distribution ◽  
Polarization Conversion ◽  
Vortex Beam ◽  
Cross Polarization ◽  
Measurement Results ◽  
Vortex Beams ◽  
Simulation Results ◽  
Polarization Level ◽  
Transmission Phase

In this paper, metasurfaces with both cross-polarization conversion and vortex beam-generating are proposed. The proposed finite metasurface designs are able to change the polarization of incident electromagnetic (EM) waves to its cross-polarization. In addition, they also can modulate the incidences into beams carrying orbital angular momentum (OAM) with different orders ( l = + 1 , l = + 2 , l = − 1 and l = − 2 ) by applying corresponding transmission phase distribution schemes on the metasurface aperture. The generated vortex beams are at 5.14 GHz. The transmission loss is lower than 0.5 dB while the co-polarization level is −10 dB compared to the cross-polarization level. The measurement results confirmed the simulation results and verified the properties of the proposed designs.

Reflective and transmissive cross-polarization converter for terahertz wave in a switchable metamaterial

2021 ◽  
Author(s):  
Yuanyuan Jiang ◽  
Man Zhang ◽  
Weihua Wang ◽  
Zhengyong Song
Keyword(s):  
Vanadium Dioxide ◽  
High Efficiency ◽  
Incident Angle ◽  
Terahertz Wave ◽  
Polarization Conversion ◽  
Cross Polarization ◽  
Polarization Converter ◽  
Metallic Grating ◽  
Vanadium Dioxide Film ◽  
Wave Conversion

Abstract Utilizing the phase transition characteristic of vanadium dioxide, we present a metamaterial configuration to achieve both reflective and transmissive cross-polarization converters. When vanadium dioxide is metal, the design behaves as a reflective cross-polarization converter. It consists of metallic grating, topas spacer, and vanadium dioxide film. Polarization conversion ratio is more than 90% in the frequency range from 4.80 THz to 13.13 THz. When vanadium dioxide is insulator, the design behaves as a transmissive cross-polarization converter using cascaded metallic gratings with rotation angle . High-efficiency broadband cross-polarization wave conversion is achieved in the frequency band of 0.50-4.75 THz. The effects of oblique incidence on reflective and transmissive modes are studied on polarization conversion. The results tell that cross-polarization conversion is better when incident angle is in the range of -. The designed metamaterial may have a certain inspiration for the research of terahertz multifunctional polarization converter.

Versatile Cross‐Polarization Conversion Chiral Metasurface for Linear and Circular Polarizations

2020 ◽  
Vol 8 (13) ◽  
pp. 2000194
Author(s):  
Peng Fei ◽  
Guy A. E. Vandenbosch ◽  
Weihua Guo ◽  
Xin Wen ◽  
Di Xiong ◽  
...  
Keyword(s):  
Polarization Conversion ◽  
Cross Polarization
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