Dual-band linear polarization converter based on multi-mode metasurface

Wu, Yueyang; Huang, Shengxiang; Deng, Lianwen; Tang, Chao; Gao, Xiaohui; Fang, Shuguang; Qiu, Lei‐Lei

doi:10.1016/j.rinp.2022.105859

Cited by 11 publications

(5 citation statements)

References 36 publications

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“…There are four resonant modes distributed at 3.88 (3.81) GHz, 4.4 (4.3) GHz, 9.15 (9.25) GHz, and 9.95 (9.94) GHz, and each passband achieves a second-order filtering response. The roll-down coefficients of each sideband can reach up to 24 (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25) GHz. Remarkably, the proposed converters have indeed achieved excellent filtering performance in the sideband and out-of-band, as is well demonstrated in prediction and confirmed in experiment.…”

Section: Resultsmentioning

confidence: 99%

“…Importantly, the average roll-down coefficient of the sideband can reach up to 19.3 dB GHz −1 . In [13], four resonant modes are produced by loading cross-slotted square patches, thereby expanding the sideband average roll-down coefficient to 25.6 dB GHz −1 . Most of the multi-order multiband responses have been achieved through coupled modes.…”

Section: Introductionmentioning

confidence: 99%

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Filtering linear polarization converters based on multi-mode unit for harmonic suppression

Qiu

Fang

Zhu

et al. 2023

J. Phys. D: Appl. Phys.

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In this article, a class of filtering linear polarization converters based on single quasi-single-layer triangular resonator unit is proposed. By loading the stub-line and slot lines, the degenerate modes of the single fundamental resonant mode of an isosceles right-angle patch are separated into two for a second-order filtering characteristic, and two additional resonant modes are then generated for the second conversion band. Attributed to the mixed electric and magnetic coupling in the coupling section of the loaded stub-line, several conversion zeros are introduced at the same. As the contribution of this work, multiple resonant modes and conversion zeros can be independently controlled by the corresponding parameters, enabling second-order single- and dual-band response with multi-mode high selectivity side-band and harmonic rejection characteristics out-of-band. With the detailed analysis of the surface current and field distributions, the polarization conversion mechanisms are revealed. Finally, the single-band and dual-band linear polarization converters are processed, and the measured and simulated results are in good agreement. As expected, the two polarization converters show excellent filtering features, which is beneficial for improving modulation accuracy and avoiding unwanted electromagnetic interference in various application of multi-passband and multi-functional metasurfaces.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Filtering linear polarization converters based on multi-mode unit for harmonic suppression

Qiu

Fang

Zhu

et al. 2023

J. Phys. D: Appl. Phys.

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“…In summary, whether in the metallic or insulating state, the metasurface in the two bands is stable for oblique incidence up to 30º for both polarizations. [37,50] proposed a dual-band polarization converter, but the rigid dielectric materials were used. Especially, the RB of the dual-band is very narrow in ref.…”

Section: Dependence Of Pcr On Incident Anglementioning

confidence: 99%

“…Table 1 lists detailed comparisons between this work and other related designs. Ye et al and Wu et al [ 37,50 ] proposed a dual‐band polarization converter, but the rigid dielectric materials were used. Especially, the RB of the dual‐band is very narrow in ref.…”

Section: Effect Of Model Parameters On Polarization Conversion Perfor...mentioning

confidence: 99%

A Tunable Dual‐Band Flexible Polarization Converter Based on Vanadium Dioxide Reflective Metasurface

Fu,

Zhang,

Zhang

et al. 2023

Physica Status Solidi (a)

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A flexible dual‐band efficient polarization converter is realized by both coupled mode theory (CMT) analysis and numerical simulation in the microwave regime, using a four‐layered reflective metasurface. The proposed structure can convert linearly polarized electromagnetic (EM) waves into their orthogonal components in the two sidebands and a specular reﬂection performance in the central frequency band. The polarization conversion ratio(PCR) and operating bandwidth of dual‐band can be dynamically modulated by the introduction of vanadium dioxide(VO2). Simulation results show that the proposed metasurface can achieve linear polarization conversion in 8.17‐12.87 GHz and 14.63‐18.92 GHz in the insulating phase. PCRs of the dual‐band are 97.06% and 98.13%, the corresponding relative bandwidths (RB) are 44.68% and 25.58%, respectively. In the metallic phase, the PCRs in 6.81‐13.95 GHz and 16.23‐18.16 GHz are 91.12% (RB=68.79%) and 96.92% (RB=11.22%). The analyses of the phase difference (u‐v coordinate system) and the surface current are given to explain the mechanisms of dual‐band and high PCR. The simulation results are in good agreement with those of CMT. Moreover, the structure has a robust response to the oblique incidence angle (up to 30°) and has polarization insensitivity. The proposed metasurface has great potential applications in antenna radiation, biosensing and stealth technology.This article is protected by copyright. All rights reserved.

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“…For instance, in [22], a multifunctional polarization converter based on dielectric metamaterial is proposed, achieving linear orthogonal transformation at 11.5-12.6 GHz. In [23], a dual-frequency linear polarizer is introduced, demonstrating effective operation between 3.16-3.52 GHz and 7. 19-8.61 GHz in frequency range.…”

Section: Introductionmentioning

confidence: 99%

Broadband and High-efficiency Reflective Linear Polarizer

Huang¹,

Ma²,

Cui³

et al. 2023

PIER C

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In this paper, we propose a wideband linear polarizer that utilizes metamaterial and metasurface techniques to achieve highly efficient polarization conversion. The proposed polarizer achieves a polarization conversion ratio exceeding 90% at 12.0-16.0 GHz, as confirmed by both simulated and experimental results. The effects of geometric parameters, incidence angle, and polarization angle on the performance of the polarizer are analyzed, and it is demonstrated that the polarizer maintains an extremely high polarization conversion efficiency even under wide-angle incidence. The polarization conversion mechanism is elucidated through the examination of eigenmode and surface current distribution. This work holds significant promise for the control of electromagnetic waves, making it essential for upcoming engineering applications.

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Dual-band linear polarization converter based on multi-mode metasurface

Cited by 11 publications

References 36 publications

Filtering linear polarization converters based on multi-mode unit for harmonic suppression

Filtering linear polarization converters based on multi-mode unit for harmonic suppression

A Tunable Dual‐Band Flexible Polarization Converter Based on Vanadium Dioxide Reflective Metasurface

Broadband and High-efficiency Reflective Linear Polarizer

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