Broadband Chiral-Type Linear to Linear Reflecting Polarizer With Minimal Bandwidth Reduction at Higher Oblique Angles for Satellite Applications

Shukoor, Mohammad Abdul; Dey, Sukomal; Koul, Shiban K.

doi:10.1109/tap.2022.3161384

Cited by 35 publications

(7 citation statements)

References 26 publications

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“…The simulated PCR and AR (dB) for TE and TM incidences are shown in Figs 5 and 6, respectively. The PCR computation deals with reflectance magnitudes, but the reflection phases explain its behavior better at higher oblique angles [27]. The PCR bandwidth is reduced when the incidence angle is shifted away from the normal.…”

Section: Unitcell Design and The Simulation Resultsmentioning

confidence: 99%

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Highly miniaturized wideband angular stable linear–circular and linear–cross polarization converter for Ka-band satellite applications

Shukoor

Dey

2023

Int. J. Microw. Wireless Technol.

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This work proposes a novel, extremely miniaturized wideband linear–circular and linear–cross metasurface-enabled reflective polarizer. This design comprises a Meander-line structure with horizontal dipoles as the top frequency selective surface, printed on a 1 mm thin-grounded FR-4 substrate. The x/y-polarized incident electromagnetic wave is converted as circularly polarized from 10.60 to 10.92 GHz (LHCP/RHCP), 12.12 to 17.32 GHz (RHCP/LHCP), and 22.72 to 37.76 GHz (LHCP/RHCP) during reflection with 2.97, 35.33, and 49.74% Fractional Bandwidth (FBW). In addition, this design shows linear–cross conversion with a minimum 90% polarization conversion ratio from 11.41 to 12, 19.01 to 22.34, and 40.74 to 46.82 GHz with an FBW of 5.04, 16.11, and 13.89%. The device performance is considerably stable under different oblique incidences, and the polarizer's unitcell is compact with a structural periodicity of 0.089 × 0.064 $\lambda _L^2$ , and ultra-thin low-profile substrate thickness of 0.035λL. The proposed prototype is fabricated, and the measured results are in good agreement with the simulated one. This article also mentions how this polarizer could be tuned for dual-band K- and Ka-band satellite applications. The authors believe that the design's novelty lies in the multiband conversion with circular-polarization orthogonality, a highly miniaturized unitcell's volume of 0.199 $\lambda _L^3$ /1000, and better angular stability made this design a potential candidate for real-time satellite applications.

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Section: Unitcell Design and The Simulation Resultsmentioning

confidence: 99%

“…13(a)). The free-space measurement method is adopted to extract the fabricated sample's reflectances [27], as depicted in Fig. 13(b).…”

Section: Prototype Fabrication and Measured Resultsmentioning

confidence: 99%

Highly miniaturized wideband angular stable linear–circular and linear–cross polarization converter for Ka-band satellite applications

Shukoor

Dey

2023

Int. J. Microw. Wireless Technol.

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“…Linear cross-polarization conversion is usually achieved using anisotropic resonators [12][13][14][15][16][17][18][19][20] in the metasurface design. Anisotropic geometry leads to cross-coupling between electric and magnetic fields components that results in linear-linear cross conversion.…”

Section: Introductionmentioning

confidence: 99%

A single-layer, wideband and angularly stable metasurface based polarization converter for linear-to-linear cross-polarization conversion

et al. 2023

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In this article, a single-layer metasurface based reflector design is proposed for linear-to-linear cross-polarization conversion in microwave frequency range. The unit-cell of the proposed design consists of triple-arrow resonant design printed on a grounded FR4 substrate. Excellent cross-conversion is achieved over a broad frequency range (8.0–18.50 GHz) with polarization conversion efficiency higher than 90%. The proposed design has a large fractional bandwidth (FBW) of 80% due to three resonances occurring in the band. The polarization response is angularly stable with respect to oblique incidences with incidence angles up to 45°. The proposed design has been fabricated and experimentally validated. The measurement results are in good agreement with the simulation results.

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“…The oblique incident characteristic is analyzed by the transferring matrix method, which provides a promising idea for the design of wide‐angle devices. [ 13 ] Zhang et al designed a deformed bowtie‐shaped particle ultra‐broadband polarization conversion metasurface, which can obtain over 90% PCR in 8.80–20.90 GHz. The wideband working mechanism is analyzed by Fabry–Perot interference theory, which provides further application opportunities for radar stealth technology.…”

Section: Introductionmentioning

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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Broadband Chiral-Type Linear to Linear Reflecting Polarizer With Minimal Bandwidth Reduction at Higher Oblique Angles for Satellite Applications

Cited by 35 publications

References 26 publications

Highly miniaturized wideband angular stable linear–circular and linear–cross polarization converter for Ka-band satellite applications

Highly miniaturized wideband angular stable linear–circular and linear–cross polarization converter for Ka-band satellite applications

A single-layer, wideband and angularly stable metasurface based polarization converter for linear-to-linear cross-polarization conversion

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

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