Results 21 to 30 of about 1,149,214 (258)
Ultra-efficiency broadband terahertz polarization converter based on a cross-shaped metamaterial
AIP Advances, 2022 In this study, we describe the design, fabrication, and characterization of a cross-shaped structure reflective broadband THz polarization converter. The operating bandwidth of the proposed polarization converter was in the range of 0.8–1.6 THz.
Wenjia Liu +13 more
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Compact 2-step Septulum Polarization Converters for Radars and Satellite Systems
Advanced Electromagnetics, 2022 This article presents the results of analysis, numerical simulations and optimization of new narrowband guide septulum polarization converters. Orthomode duplexers and polarization converter designs based on septulums are widely used in modern microwave
S. Piltyay +3 more
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A four-sector polarization converter integrated in a calcite crystal [PDF]
Компьютерная оптика, 2018 A new approach to the implementation of sectorial plates for beam polarization conversion is proposed. Using a newly developed etching technology, a four-sector polarization converter integrated into a calcite crystal is implemented.
Sergei Karpeev +4 more
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Terahertz multi-band absorber and dual-bandwidth polarization converter based on VO2 and graphene
Results in Physics, 2023 A terahertz metamaterial with multiple functions is proposed based on patterned graphene, concentric gold rings and gold columns, and vanadium dioxide (VO2).
Yang Jia +5 more
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IEEE Access, 2022 Polarization-control devices have attracted considerable interest, however, most of the polarization converters operating at lower frequencies have a heavy design and narrow bandwidth which limits their practical applications.
Thi Minh Nguyen +6 more
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AIP Advances, 2022 Polarization converters play an important role in practical applications to manipulate the electromagnetic wave. However, the development of a polarization converter that possesses both high conversion efficiency and a wide frequency band is very ...
Thi Minh Nguyen +4 more
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Materials Research Express, 2022 In this paper, a full-space electromagnetic wave polarization converter working in the terahertz frequency was put forward, and its physical mechanism was also analyzed.
Xunyong Pan +3 more
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Frontiers in Physics, 2022 This work proposes a low-profile circularly polarized folded reflectarray antenna (CPFRA). Compared to traditional CPFRA that comprise the main reflectarray, a polarization grid (PG), and a linear-to-circular polarization (LP-CP) converter, the proposed ...
Shuang Liu +6 more
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Graphene-based tunable linear and linear-to-circular polarization converters in the THz band
Results in Physics, 2022 A switchable and tunable reflective terahertz (THz) polarization converter based on graphene metamaterial is designed and analyzed. By changing the Fermi energy level of graphene, the converter can achieve broadband linear polarization conversion (LPC ...
Xueguang Yuan +5 more
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Wideband RCS Reduction Based on Hybrid Checkerboard Metasurface
Sensors, 2023 Traditional stealth technologies all have their problems such as high cost and large thickness. To solve the problems, we used novelty checkerboard metasurface in stealth technology. Checkerboard metasurface does not have as high conversion efficiency as
Zhiming Zhao, Xiaoping Li, Guoxiang Dong
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