Results 51 to 60 of about 16,124 (251)

On radar cross section reduction effect by filamentary discharge in a dielectric barrier discharge

open access: yesAIP Advances
In Radar Cross Section (RCS) reduction as a military technology, dielectric barrier discharge (DBD) plasma is one of the most effective methods. For RCS reduction, it is reported that high plasma density over 1013/cm3 is required with high power and risk
Minsu Choi   +8 more
doaj   +1 more source

Modified MXene Aerogel With Broadband Microwave Absorption Inspired by Melanophila Acuminata Beetle

open access: yesAdvanced Science, EarlyView.
This work introduces a novel biomimetic strategy inspired by the infrared‐sensing sensilla of the Melanophila acuminata beetle. We have designed a multi‐level aerogel, featuring a three‐dimensional carbon framework decorated with synergistic CeO2 nanoparticles and Ti3C2Tx MXene nanosheets.
Zhiwei Liu   +6 more
wiley   +1 more source

Comparative analyzes of Antenna Designs for applications in stealth technologies

open access: yesSukkur IBA Journal of Emerging Technologies, 2021
In this research UWB Antennas are designed, demonstrated and compared for stealth applications. Many-methods are applied on designs to realize RCS reduction.
Deedar Ali Jamro   +3 more
doaj   +2 more sources

Metasurface base on uneven layered fractal elements for ultra-wideband RCS reduction

open access: yesAIP Advances, 2018
A novel metasurface based on uneven layered fractal elements is designed and fabricated for ultra-wideband radar cross section (RCS) reduction in this paper.
Jianxun Su   +5 more
doaj   +1 more source

RCS reduction technique for reflectarray antennas

open access: yesElectronics Letters, 2003
The performance of a concentric ring reflectarray element backed either by a solid metal ground plane or a frequency-selective surface is compared. Simulated and measured results show that the ‘in-band’ reflection phase response of the two structures is similar; however, the periodic surface reduces the ‘out-of-band’ reflectivity of the antenna by more
Misran, N.   +2 more
openaire   +2 more sources

Rare‐Earth–Sulfur Surface Modification Enables SiC Ceramics for Low‐Frequency Electromagnetic Wave Absorption in Extreme Environments

open access: yesAdvanced Science, EarlyView.
By altering surface chemical bonds to prolong relaxation time and shift absorption to lower frequencies, SiC/rare earth–sulfur (RE─S, RE = La, Ce, Pr, Sm, Gd, Er) materials achieve excellent low‐frequency electromagnetic wave absorption under extreme conditions, offering a new direction for designing high‐performance SiC‐based absorbers.
Zhanming Wu   +5 more
wiley   +1 more source

Wideband RCS Reduction of Microstrip Array Antenna Based on Absorptive Frequency Selective Surface and Microstrip Resonators

open access: yesInternational Journal of Antennas and Propagation, 2017
An approach for wideband radar cross section (RCS) reduction of a microstrip array antenna is presented and discussed. The scheme is based on the microstrip resonators and absorptive frequency selective surface (AFSS) with a wideband absorptive property ...
Jingjing Xue, Wen Jiang, Shuxi Gong
doaj   +1 more source

Broadband radar cross section reduction by in-plane integration of scattering metasurfaces and magnetic absorbing materials

open access: yesResults in Physics, 2019
An in-plane hybrid design is proposed to achieve broadband radar cross section (RCS) reduction based on the integration of a diffusion scattering electromagnetic band-gap (EBG) metasurface and a magnetic absorbing material (MAM) at a thin thickness (d ...
Wei Li   +5 more
doaj   +1 more source

Janus Nanostructures Enabled by Confined Interfacial Engineering for Enhanced Electromagnetic Response

open access: yesAdvanced Science, EarlyView.
Confined diffusion‐driven interfacial engineering enables the nanoscale construction of asymmetric SiC@C Janus hollow nanoshells, achieving synergistic impedance matching and electromagnetic energy dissipation for highly efficient broadband microwave absorption at ultralow filler loading.
Limeng Song   +17 more
wiley   +1 more source

A New Coding Metasurface for Wideband RCS Reduction [PDF]

open access: yesRadioengineering, 2018
In this paper, two novel artificial magnetic conductors (AMC) structures are designed to realize 180 degrees of phase difference in a wideband frequency. These two AMC structures are encoded as unit “0”and unit “1”, respectively.
L.R.Ji-Di   +5 more
doaj  

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