Ultra-wideband and wide-angle polarization rotator based on double W-shaped metasurface

Zhao, Yinrui; Qi, Buxiong; Niu, Tiaoming; Mei, Zhong Lei; Qiao, Lihong; Zhao, Yaodong

doi:10.1063/1.5098515

Cited by 43 publications

(13 citation statements)

References 39 publications

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“…In recent years, polarization converters operating in the reflection mode with versatile polarization conversion operations such as from circular to circular, linear to circular, and linear to linear have received great attention. [11][12][13][14][15][16] These converters can be constructed by various resonators including W shape, [17] U shape, [18] L shape, [19,20] H shape, [21] V shape, [22] and split ring with center disc. [23] By designing resonance peaks of these converters sequentially positioned in a frequency band, it is possible to implement a broadband polarization converter.…”

Section: Introductionmentioning

confidence: 99%

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Easy‐to‐Implement Ultra‐Thin, Wide‐Band, and Multi‐Functional Polarization Converter for K and Ka Band Applications

Coskun

Hasar

Özmen

et al. 2022

Advcd Theory and Sims

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This article presents an ultrathin, broadband, and multipurpose polarization converter design utilizing an anisotropic metasurface for K and Ka band. The proposed polarization converter, which has a single layer F4B as a substrate material with hexagonal‐shaped metallic solid structure along with hexagonal ring with diagonal splits on its front surface and a background (a completely metallic surface) on its back, works as not only a circular polarization converter but also a linear polarization to circular polarization (LP to CP) converter. Its polarization conversion rate (PCR) is more than 90% in the frequency range from 17.87 to 43.15 GHz, covering all of the K and Ka bands with a relative bandwidth of 83% under normal incidence case. For incidence angles up to 40°, PCR is observed to be greater than 75% in almost all of the K and Ka bands (except for the frequency range between 24.72 and 27.11 GHz). Furthermore, the proposed design has LP to CP in two different frequency bands, 16.23–16.74 GHz and 48.6–48.8 GHz. The proposed polarization converter, as advantages, is low cost, ultra thin, broadband, and facile, which can be useful in linear cross polarization conversion in K and Ka band applications.

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Section: Introductionmentioning

confidence: 99%

“…Although these polarization converters have broadband and high polarization conversion rate (PCR), their bandwidths decrease as the incidence angle increases. [17,[21][22][23] Therefore, they are sensitive to the incidence angle.…”

Section: Introductionmentioning

confidence: 99%

Easy‐to‐Implement Ultra‐Thin, Wide‐Band, and Multi‐Functional Polarization Converter for K and Ka Band Applications

Coskun

Hasar

Özmen

et al. 2022

Advcd Theory and Sims

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show abstract

“…Over the past decade, it has been found that metasurface can provide a convenient way to control the polarization state of EM wave. In recent years, to update the conventional design method, many different types of polarization converters have been proposed based on various anisotropic or chiral metasurfaces, which can perform different polarization conversions, such as cross polarization conversion [3][4][5][6][7][8][9][10] or linear-to-circular polarization conversion [11][12][13][14][15][16][17] . In addition, A righthanded/left-handed circularly polarized (RCP/ LCP) wave will be converted to a LCP/ RCP one after reflection on a conducting surface, however, based on a proper anisotropic or chiral metasurface, a CP-maintaining metasurface can be proposed, which can keep the handedness of the reflected wave the same as that of the CP incident one.…”

Section: Introductionmentioning

confidence: 99%

An Ultra-Wideband Circular Polarization-Maintaining Metasurface and Its Application in RCS Reduction

Lin

Huang

et al. 2021

IEEE Access

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In this work, a circular polarized (CP) maintaining metasurface is proposed, which can realized ultra-wideband CP-maintaining reflection and make its co-polarization reflection coefficient under CP incidence close to 1.0 in the frequency range from 6.2 to 26.4 GHz. Because Pancharatnam-Berry (PB) phase can be generated in the co-polarized reflection coefficient under CP incidence by rotating its unit cell structure, a 2-bit PB coding metasurface for Radar Cross Section (RCS) reduction is further proposed based on the CP-maintaining metasurface. The simulated results show that the proposed PB coding metasurface has excellent performance in RCS reduction, compared with a pure metal plate with the same size, its RCS can be reduced more than10dB under arbitrary polarization normal incidences in the ultra-wide frequency band 6.2-26.5GHz with relative band of 124.1%. Finally, an effective experimental validation is carried out.

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“…Up to now, the linear‐to‐linear, linear‐to‐circular, and circular‐to‐circular polarization based on metasurface has been obtained 14–17 . For example, a pair of V‐shaped metasurface structures, 18 I‐shaped structures, 19 cut wire shaped, 20 double‐W‐shaped, 21 double split ring, 22 L‐patterns 23 have also been published. In addition, Xiaojun Huang 24 designed a composite structure metasurface consists of metal strip and rectangular ring.…”

Section: Introductionmentioning

confidence: 99%

A polarization converter with single‐band linear‐to‐linear and dual‐band linear‐to‐circular based on single‐layer reflective metasurface

Liao

Liu

Zheng

et al. 2021

Int J RF Mic Comp-Aid Eng

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A single‐layer reflective metasurface with linear‐to‐linear polarization and circularly polarized reflection under linearly polarized incident wave is investigated in this work. The unit cell of our designed metasurface is formed by the inner cross structures and the outer two pairs of serpentine lines etched on the substrate, and metallic copper is attached to the back of the substrate. The simulation results are as follows that the linearly polarized reflected wave in the middle frequency ranges of 9.33–11.77 GHz (the fractional bandwidth of 23.1% and the polarization conversion ratio over 95%) is realized when the co‐polarization reflection coefficients are within −14 dB under the y‐polarized illuminated wave. Besides, the linear‐to‐circular polarization state is completed when the y‐polarized wave impinges on this metasurface in two nonadjacent frequency bands from 5.95 to 8.80 GHz and 12.68 to 15.58 GHz, which are corresponding to the relative bandwidth of 38.6% and 20.5% respectively according to the 3 dB axial ratio bandwidth property. In addition, the physical mechanism is explained and the sample of this metasurface converter is manufactured and tested. The experiment results are corresponding to the simulation results, which prove the reliability of the simulation results.

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Ultra-wideband and wide-angle polarization rotator based on double W-shaped metasurface

Cited by 43 publications

References 39 publications

Easy‐to‐Implement Ultra‐Thin, Wide‐Band, and Multi‐Functional Polarization Converter for K and Ka Band Applications

Easy‐to‐Implement Ultra‐Thin, Wide‐Band, and Multi‐Functional Polarization Converter for K and Ka Band Applications

An Ultra-Wideband Circular Polarization-Maintaining Metasurface and Its Application in RCS Reduction

A polarization converter with single‐band linear‐to‐linear and dual‐band linear‐to‐circular based on single‐layer reflective metasurface

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