Results 21 to 30 of about 2,697,867 (333)
Leaky modes of a left-handed slab [PDF]
Journal of the European Optical Society-Rapid Publications, 2008 Using complex plane analysis we show that left-handed slab may support either leaky slab waves, which are backward because of negative refraction, or leaky surface waves, which are backward or forward depending on the propagation direction of the surface
Moreau A., Felbacq D.
doaj +1 more source
Sensors, 2022 Soil moisture has been considered a key variable in governing the terrestrial ecosystem. However, it is challenging to preserve indigenous soil characteristics using conventional soil moisture monitoring methods that require maximum soil contacts.
Dong Kook Woo +3 more
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Collimating Cylindrical Surface Leaky Waves for Highly Improved Radiation Characteristics of Holograms [PDF]
Physical Review Applied, 2018 High resolution microwave leaky wave holograms excited by center-fed cylindrical surface wave launcher show a null at object wave direction which is an undesired effect for electromagnetic beamforming.
M. Moeini, H. Oraizi, A. Amini
semanticscholar +1 more source
Detection of coatings within liquid-filled tubes and containers by mode conversion of leaky Lamb waves [PDF]
Journal of Sensors and Sensor Systems, 2013 In this paper, a new acoustic sensor principle for coating detection within liquid-filled tubes and containers based on mode conversion of leaky Lamb waves is introduced.
M. Schmitt +6 more
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A Review of Reconfigurable Leaky-Wave Antennas [PDF]
IEEE Access, 2021 A comprehensive survey of the reconfigurable leaky-wave antennas (LWAs) is made in this paper. Beam-steering and unique radiating features of LWA are highlighted particularly. Therefore, the radiation mechanism of different types of LWA, including uniform, quasi-uniform, periodic, and metamaterial LWAs are discussed in detail.
Nima Javanbakht +3 more
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Mathematical Theory of Leaky Waves in an Anisotropic Waveguide [PDF]
, 2022 The problem on leaky waves in an anisotropic inhomogeneous dielectric waveguide is considered. This problem is reduced to the boundary eigenvalue problem for longitudinal components of electromagnetic field in Sobolev spaces. To find the solution, we use
Smolkin, Eugene,, Snegur, M.,
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Modelling Leaky Waves in Planar Dielectric Waveguides [PDF]
EPJ Web of Conferences, 2020 Experimentally observed leaky modes of a dielectric waveguide are characterised by a weak tunnelling of the light through the waveguide and its long-time propagation along the waveguide.
Ayryan Edik +4 more
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Innovative Application Contexts for Focusing Devices based on Leaky Waves [PDF]
, 2023 Nowadays, there exist many kinds of devices capable to generate focused electromagnetic radiation with reduced diffraction in the near field, such as Bessel beams.
Fuscaldo, Walter +3 more
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Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 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) filled ...
Yu.G. Smirnov, E.Yu. Smol'kin
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2023 17th European Conference on Antennas and Propagation (EuCAP), 2023 AbstractLeaky waves are complex eigenmodes compatible with radiation in terms of their momentum, which can be supported by open waveguiding structures and can be effective at modeling radiative phenomena from such systems. Here, a “flatland” analog of leaky‐wave radiation is introduced to describe a novel mechanism for in‐plane radiation leakage that ...
Massimo Moccia +3 more
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