Dual-band cross polarization converter in bi-layered complementary chiral metamaterial

In this paper, a dual-band cross-polarization converter is proposed. The proposed device can convert linearly polarized incident waves to their cross-polarized transmitted waves. Inspired by the aperture coupled transmitarray, a transmissive multi-layered unit cell structure was designed, which can operate in two frequency bands. The designed structure can manipulate the polarization of the transmitted wave into the cross-polarization of the incident waves at 10.36 GHz and 11.62 GHz. The cross-polarized transmittance of the proposed cross-polarization converter is higher than 0.93. In addition, the transmitted wave has an extremely low co-polarized component, which results in a nearly 100% polarization conversion ratio. The two working frequencies can be tuned independently. The proposed cross-polarization converter was simulated, fabricated and measured. The simulation results confirm with the measurement results.

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Cross polarization converter formed by rotated-arm-square chiral metamaterial

Journal of Applied Physics ◽

10.1063/1.4846096 ◽

2013 ◽

Vol 114 (22) ◽

pp. 224506 ◽

Cited By ~ 18

Author(s):

R. Rajkumar ◽

N. Yogesh ◽

V. Subramanian

Keyword(s):

Cross Polarization ◽

Polarization Converter ◽

Chiral Metamaterial

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

Scientific Reports ◽

10.1038/s41598-021-81586-w ◽

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.

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Dual-Band, Differentially-Fed Filtenna with Wide Bandwidth, High Selectivity and Low Cross-Polarization

IEEE Transactions on Antennas and Propagation ◽

10.1109/tap.2021.3138505 ◽

2022 ◽

pp. 1-1

Author(s):

Dajiang Li ◽

Ming-Chun Tang ◽

Yang Wang ◽

Kun-Zhi Hu ◽

Richard W. Ziolkowski

Keyword(s):

High Selectivity ◽

Dual Band ◽

Cross Polarization ◽

Wide Bandwidth

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DUAL-BAND CIRCULAR POLARIZER AND LINEAR POLARIZATION TRANSFORMER BASED ON TWISTED SPLIT-RING STRUCTURE ASYMMETRIC CHIRAL METAMATERIAL

Progress In Electromagnetics Research ◽

10.2528/pier14020501 ◽

2014 ◽

Vol 145 ◽

pp. 263-272 ◽

Cited By ~ 22

Author(s):

Yongzhi Cheng ◽

Yan Nie ◽

Zhengze Cheng ◽

Rong Zhou Gong

Keyword(s):

Linear Polarization ◽

Ring Structure ◽

Dual Band ◽

Split Ring ◽

Circular Polarizer ◽

Chiral Metamaterial

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Numerical design of a high eﬃciency and ultra-broadband terahertz cross-polarization converter

Materials Research Express ◽

10.1088/2053-1591/ac0369 ◽

2021 ◽

Author(s):

Thanh Nghia Cao ◽

Minh Tam Nguyen ◽

Ngoc Hieu Nguyen ◽

Chi Lam Truong ◽

Thi Quynh Hoa Nguyen

Keyword(s):

High Efficiency ◽

Cross Polarization ◽

Polarization Converter ◽

Numerical Design ◽

Broadband Terahertz

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

Physica Scripta ◽

10.1088/1402-4896/ac46f5 ◽

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.

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