Zobrazeno 1 - 10
of 804
pro vyhledávání: '"leaky waves"'
Publikováno v:
Геосистемы переходных зон, Vol 8, Pp 201-211 (2024)
A study of wave processes near Cape Svobodny on the south-eastern coast of the island Sakhalin using autonomous wave recorders and a weather station has been performed. Analysis of five-month data of sea level and temperature, atmospheric pressure an
Externí odkaz:
https://doaj.org/article/5b4209a529e34e329871e9a9e601634a
Publikováno v:
Nanophotonics, Vol 12, Iss 14, Pp 2973-2985 (2023)
Anisotropic Self-Complementary Metasurfaces (SC-MTSs) are structures constituted by an alternation of complementary inductive and capacitive strips, which are “self-dual” according to Babinet’s duality principle. They support the propagation of
Externí odkaz:
https://doaj.org/article/30b6c75c28a24c4b8a99e7636d81d3a5
Autor:
Walter Fuscaldo, Elahehsadat Torabi, Dimitrios C. Zografopoulos, Danilo Erricolo, Romeo Beccherelli
Publikováno v:
IEEE Access, Vol 11, Pp 91831-91841 (2023)
A rectangular metallic leaky waveguide loaded with liquid crystals (LC) and operating in its fundamental TE mode at 1 THz is proposed to mitigate the well-known trade-off between directivity and tunable angular range of dynamic beamscanning antennas.
Externí odkaz:
https://doaj.org/article/74edf2292cef446ba0584f2940dcbe2e
Autor:
Alessandro Calcaterra, Patrizio Simeoni, Marco Donald Migliore, Fabio Mangini, Fabrizio Frezza
Publikováno v:
Sensors, Vol 23, Iss 21, p 8923 (2023)
In this paper, we exploit the enhanced penetration reachable through inhomogeneous waves to induce hyperthermia in biological tissues. We will present a leaky-wave antenna inspired by the Menzel antenna which has been shortened through opportune desi
Externí odkaz:
https://doaj.org/article/58a391ad7739470997fc7652ddd3a60c
Autor:
Minh Quang Dinh, Minh Thuy Le
Publikováno v:
IEEE Access, Vol 10, Pp 28461-28470 (2022)
In this work, we propose using time-modulation in metallic materials, which can be realized through either optical pumps or electric signals, as a coupling mechanism between radiation and surface plasmon polaritons (SPP) without using any optical com
Externí odkaz:
https://doaj.org/article/5074b91de8144c8ebbbdb61ae74c765f
Akademický článek
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Autor:
Ersoy Kelebekler
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 21, Iss 3, Pp 189-200 (2021)
An open dielectric waveguide includes both guided propagating modes within the waveguide and radiating and evanescent modes that propagate transversely outside the waveguide. In this study, the leaky-wave characteristics of a cylindrical dielectric r
Externí odkaz:
https://doaj.org/article/3219b7fb7d3e494d8b32646435499ed5
Autor:
Yu.G. Smirnov, E.Yu. Smol'kin
Publikováno v:
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, Iss 1 (2022)
Background. The purpose of this research is to study the process of propagation of coupled surface TE and leaky TM of polarized electromagnetic waves in the Goubau line (an ideally conducting cylinder covered with a concentric dielectric layer) fil
Externí odkaz:
https://doaj.org/article/0c54774aa852493d96c9b2c24c2c527f
Autor:
Paolo Burghignoli, Walter Fuscaldo, Francesco Mancini, Davide Comite, Paolo Baccarelli, Alessandro Galli
Publikováno v:
IEEE Access, Vol 8, Pp 163006-163014 (2020)
A planar antenna radiating twisted beams with different azimuthal order and a consistent beam angle is designed by employing a single uniform circular array embedded in a Fabry-Perot cavity. Circular phased arrays placed in free space are commonly em
Externí odkaz:
https://doaj.org/article/73fa565de5904148bd97300066324420
Publikováno v:
Micromachines, Vol 13, Iss 12, p 2230 (2022)
Resonant Bessel-beam launchers are low-cost, planar, miniaturized devices capable of focusing electromagnetic radiation in a very efficient way in various frequency ranges, with recent increasing interest for microwave and millimeter-wave application
Externí odkaz:
https://doaj.org/article/91e21c1397ba48608b7c2a433d77433f