Results 21 to 30 of about 80,326 (308)

Curvature-stabilized skyrmions with angular momentum [PDF]

open access: yesLetters in Mathematical Physics, 2019
We examine skyrmionic field configurations on a spherical ferromagnet with large normal anisotropy. Exploiting variational concepts of angular momentum we find a new family of localized solutions to the Landau-Lifshitz equation that are topologically distinct from the ground state and not equivariant.
Melcher, Christof, Sakellaris, Zisis N.
openaire   +3 more sources

Engineering of intelligent reflecting surfaces: Reflection locality and angular stability

open access: yes, 2023
Reconfigurable intelligent surfaces (RISs) are electromagnetically passive controllable structures, deflecting the incident wave beam in directions predefined by the control signal.
Geoffroy Lerosey (3962027)   +4 more
core   +2 more sources

A surface for zero-insertion transmission multi-passband frequency selection

open access: yesZhongguo Jianchuan Yanjiu, 2020
Objectives Focusing on the shortcomings of limited band selection and poor control effectiveness of the current multi-band frequency selective surface, this paper designs a multi-passband frequency selection surface based on the transmission zero ...
TANG Xuying   +4 more
doaj   +1 more source

UWB Frequency-Selective Surface Absorber Based on Graphene Featuring Wide-Angle Stability

open access: yesSensors, 2023
In this paper, an ultra-wideband and polarization-insensitive frequency-selective surface absorber is presented with oblique incident stable behavior.
Zhefei Wang   +5 more
doaj   +1 more source

Ultra-Broadband RCS Reduction Based on Optimized Coding “Whale-Shaped” Polarization Conversion Metasurface With Angular Stability

open access: yesIEEE Access, 2022
In this paper, we employed an efficient polarization conversion metasurface (PCM) to achieve broadband radar cross section (RCS) reduction for plane targets.
Zhongru Ren   +5 more
doaj   +1 more source

Kerr stability for small angular momentum

open access: yesPure and Applied Mathematics Quarterly, 2023
801 pages, 7 ...
Klainerman, Sergiu, Szeftel, Jérémie
openaire   +4 more sources

A dual‐stopband FSS using knitted and strong‐coupled structures with excellent angular stability and polarisation insensitivity

open access: yesIET Microwaves, Antennas & Propagation, 2022
In this paper, a novel dual‐stopband frequency selective surface (FSS) based on the knitted and strong‐coupled structures is proposed. The proposed FSS works stably at frequencies of 2.51 and 5.06 GHz for both TE and TM mode, even when the incident ...
Chenchen Li   +9 more
doaj   +1 more source

Ultra-Broadband Infrared Absorbers Using Iron Thin Layers

open access: yesIEEE Access, 2020
We theoretically proposed an ultra-broadband infrared light absorber and demonstrated that a high absorption could be obtained in the range of ultra-broadband infrared light using the iron thin layers.
Jing Liu   +6 more
doaj   +1 more source

Design of a Single-Layer Circuit Analog Absorber Using Double-Circular-Loop Array via the Equivalent Circuit Model [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2017
A broadband Circuit Analogue (CA) absorber using double-circular-loop array is investigated in this paper. A simple equivalent circuit model is presented to accurately analyze this CA absorber.
M Basravi, Z.H. Firouzeh, M Maddahali
doaj   +1 more source

FSS bandwidth design using miniaturized elements for angular stability in transmission

open access: yes, 2022
Frequency-selective surfaces (FSSs) are commonly employed at microwave frequencies in electromagnetic filtering applications. This paper reports the use of cascaded dual miniaturized elements for radio secure environments where miniaturized elements have
O'Keefe, Steven G   +4 more
core   +1 more source

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