Results 1 to 10 of about 16,124 (251)

Broadband RCS Reduction by a Quaternionic Metasurface [PDF]

open access: yesMaterials, 2021
A quaternionic metasurface consisting of two pairs of units with destructive phase difference is proposed to extend the bandwidth of radar cross section (RCS) reduction. The two pairs of units are designed to have complementary phase-different bandwidth, which extends the bandwidth of RCS reduction.
Tianlong Wu   +2 more
exaly   +5 more sources

Wideband RCS Reduction Based on Hybrid Checkerboard Metasurface [PDF]

open access: yesSensors, 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
doaj   +4 more sources

A Co-Polarization Broadband Radar Absorber for RCS Reduction [PDF]

open access: yesMaterials, 2018
In this article, a single layer co-polarization broadband radar absorber is presented. Under normal incidence, it achieves at least 90% of absorption from 5.6 GHz to 9.1 GHz for both Transverse Electric (TE) and Transverse Magnetic (TM) polarizations. Our contribution and the challenge of this work is to achieve broadband absorption using a very thin ...
Habiba Hafdallah Ouslimani
exaly   +6 more sources

RCS reduction using grounded multi-height multi-dielectrics metasurfaces [PDF]

open access: yesScientific Reports, 2023
In this paper, the PO method with the array theory are used to formulate the RCS of a grounded multi-height dielectric surface which can be employed in the design and optimization of a metasurface consisting of dielectric tiles with different heights and
Maryam Heidari   +2 more
doaj   +2 more sources

Plasma Generator with Dielectric Rim and FSS Electrode for Enhanced RCS Reduction Effect [PDF]

open access: yesSensors, 2021
In this study, a method was experimentally verified for further reducing the radar cross-section (RCS) of a two-dimensional planar target by using a dielectric rim in a dielectric barrier discharge (DBD) plasma generator using a frequency selective ...
Taejoo Oh   +10 more
doaj   +2 more sources

RCS reduction metasurface based on orbital angular momentum

open access: yesResults in Physics, 2023
A novel radar cross-section (RCS) reduction metasurface is designed, fabricated, and experimentally characterized to flexibility control wavefront and efficiency generated orbital angular momentum (OAM).
Qian Liu   +6 more
doaj   +3 more sources

Simplistic metasurface design approach for incident angle and polarization insensitive rcs reduction [PDF]

open access: yesScientific Reports
This paper proposes the design of a metasurface for polarization and incident angle-insensitive RCS reduction applications. An ellipse-shaped unit cell is utilized as a polarization converter, which is then arranged to form a checkerboard surface.
K. K. Indhu   +4 more
doaj   +2 more sources

Terahertz VO2-Based Dynamic Coding Metasurface for Dual-Polarized, Dual-Band, and Wide-Angle RCS Reduction [PDF]

open access: yesNanomaterials
With the rapid development of terahertz radar technology, the electromagnetic device for terahertz radar cross-section (RCS) reduction is worth investigating.
Ling Wang   +5 more
doaj   +2 more sources

Broadband and Tunable RCS Reduction using High-order Reflections and Salisbury-type Absorption Mechanisms [PDF]

open access: yesScientific Reports, 2019
In this paper, a broadband and tunable radar cross section (RCS) reduction structure is proposed by using the hybrid physical mechanism that is based on high-order reflections and Salisbury-type absorption.
Jiakun Song   +6 more
doaj   +2 more sources

A Hybrid RCS Reduction Method for Wind Turbines

open access: yesEnergies, 2020
Wind turbine towers produce significant scatterings when illuminated by radars. Their reflectivity affects air traffic control, military surveillance, vessel tracking, and weather data sensing processes.
Shyh-Kuang Ueng
doaj   +3 more sources

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