Results 21 to 30 of about 2,887,363 (295)

Angular and Polarization Stability of Broadband Reconfigurable Intelligent Surfaces of Binary Type

open access: yesIEEE Access, 2022
Recently, reconfigurable intelligent surfaces (RISs) gained notable consideration due to their ability to provide efficient and cost-effective wireless communication networks.
Javad Shabanpour, Constantin R. Simovski
doaj   +1 more source

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

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

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

Determining the dimensionality of bipartite orbital-angular-momentum entanglement using multi-sector phase masks [PDF]

open access: yes, 2012
The Shannon dimensionality of orbital-angular-momentum (OAM) entanglement produced in spontaneous parametric down-conversion can be probed by using multi-sector phase analysers [1].
Padgett, M.J.   +10 more
core   +4 more sources

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 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

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

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

Orbital angular momentum: origins, behavior and applications [PDF]

open access: yes, 2011
As they travel through space, some light beams rotate. Such light beams have angular momentum. There are two particularly important ways in which a light beam can rotate: if every polarization vector rotates, the light has spin; if the phase structure ...
Padgett, M.J.   +5 more
core   +1 more source

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