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A Miniaturized Triple-Band and Dual-Polarized Monopole Antenna Based on a CSRR Perturbed Ground Plane

open access: yesIEEE Access, 2021
This paper proposes a new triple-band monopole antenna based on Complementary Split Ring Resonators (CSRR) perturbing the ground plane (GND). The antenna consists of an inverted-L-shaped monopole fed by a modified microstrip line with two CSRRs cut out ...
Ahmed El Yousfi   +3 more
doaj   +1 more source

International Environmental Law: Conceptual Constants and Cognitive Dominants [PDF]

open access: yesE3S Web of Conferences, 2023
The research is aimed at defining the main concepts of international environmental law which reflect the most urgent environmental problems at different stages of the development of this area of law.
Bolshakova Mariia   +4 more
doaj   +1 more source

Online literary creativity of digital natives: genre and thematic analysis [PDF]

open access: yesSHS Web of Conferences, 2021
The article presents the results of a genre-thematic analysis of 1129 texts recognized as the most popular in 2019 on the platform Ficbook.net. It was found that young people of generation Z - the authors of these works (prose, poetry, journalism), were ...
Algavi Leila   +3 more
doaj   +1 more source

Stealthy Secret Key Generation

open access: yesEntropy, 2020
In order to make a warden, Willie, unaware of the existence of meaningful communications, there have been different schemes proposed including covert and stealth communications.
Pin-Hsun Lin   +3 more
doaj   +1 more source

Number Agreement Attraction in Czech and English Comprehension: A Direct Experimental Comparison

open access: yesGlossa Psycholinguistics, 2023
Number agreement attraction in comprehension is a phenomenon that has been documented in various typologically diverse languages. This evidence has led to claims about the cross-linguistic uniformity of agreement attraction effects and its independence ...
Jan Chromý   +3 more
doaj   +1 more source

High gain low profile horn array with circular polarization using a 3D printed anisotropic dielectric composite material at 38 GHz

open access: yesScientific Reports, 2022
In this work, the design of a fully 3D-printed dielectric polarizer based on anisotropic engineered material operating at 38 GHz is presented. The anisotropy conditions to obtain circular polarization are achieved by using an array of dielectric strips ...
Nelson Castro   +2 more
doaj   +1 more source

Cost-effective wideband dielectric planar lens antenna for millimeter wave applications

open access: yesScientific Reports, 2022
This article presents a fully 3D-printed dielectric planar lens operating in the entire Ka-band manufactured using additive manufacturing and a relatively low-cost 3D-printer.
José-Manuel Poyanco   +2 more
doaj   +1 more source

Time-Periodic Metallic Metamaterials Defined by Floquet Circuits

open access: yesIEEE Access, 2023
In this paper, we study the scattering and diffraction phenomena in time-modulated metamaterials of metallic nature by means of Floquet equivalent circuits. Concretely, we focus on a time-periodic screen that alternates between “metal” and &
Salvador Moreno-Rodriguez   +4 more
doaj   +1 more source

Orthogonal Time Frequency Space Modulation Based on the Discrete Zak Transform

open access: yesEntropy, 2022
In orthogonal time frequency space (OTFS) modulation, information-carrying symbols reside in the delay-Doppler (DD) domain. By operating in the DD domain, an appealing property for communication arises: time-frequency (TF) dispersive channels encountered
Franz Lampel   +3 more
doaj   +1 more source

Robust Student’s t Mixture Probability Hypothesis Density Filter for Multi-Target Tracking With Heavy-Tailed Noises

open access: yesIEEE Access, 2018
In order to improve filtering accuracy and restrain the degradation of filtering performance caused by the heavy-tailed process and measurement noises in multi-target tracking, this paper proposes a robust Student's t mixture probability hypothesis ...
Zhuowei Liu   +3 more
doaj   +1 more source

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