Results 11 to 20 of about 1,413,233 (284)

Reconfigurable Antennas Based on Pure Water

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
This paper is concerned with the design of reconfigurable antennas based on pure water. Being a transparent, flexible, and readily available liquid, pure water can form a cylindrical stream that can be used to guide a leaky electromagnetic wave.
Changzhou Hua   +6 more
doaj   +1 more source

Broadband high-gain planar leaky-wave antennas [PDF]

open access: yes, 2003
High-gain, low-cost, planar antennas have attracted a lot of interest in recent years, with regard to applications as fixed wireless access, satellite reception and various point-to-point radio links.
Alexandros P. Feresidis (7203416)
core   +7 more sources

45° Linearly Polarized and Circularly Polarized High-Scanning-Rate Leaky-Wave Antennas Based on Slotted Substrate Integrated Waveguide

open access: yesIEEE Access, 2020
A class of 45° linearly polarized and circular polarized high scanning rate leaky wave antennas are proposed in this paper, which is based on slow-wave substrate integrated waveguide structure.
Jianwen Zhong   +2 more
doaj   +1 more source

Continuous Leakage from Slow-Wave Structure for Integrated All-Dielectric Uniform Leaky Wave Antenna

open access: yes, 2022
We propose a concept to achieve continuous leakage from a slow-wave through a combination of tailored wave tunneling from a channel waveguide to a dielectric slab and effective-medium-based anti-reflection structures.
Headland, D., Withayachumnankul, W.
core   +1 more source

Fabry-Perot Cavity Antennas: The Leaky-Wave Perspective [Electromagnetic Perspectives]

open access: yes, 2021
A tutorial overview is presented on the principles of operation, physical modeling, and design procedures for the class of planar radiators known as Fabry-Perot cavity antennas (FPCAs), with an emphasis on their characterization as 2D leaky-wave antennas
Galli A., Fuscaldo W., Burghignoli P.
core   +1 more source

Arbitrary aperture synthesis with nonlocal leaky-wave metasurface antennas

open access: yesNature Communications, 2023
The emergence of new technological needs in 5 G/6 G networking and broadband satellite internet access amplifies the demand for innovative wireless communication hardware, including high-performance low-profile transceivers.
Gengyu Xu   +5 more
doaj   +1 more source

Analysis and Design of Tunable THz 1-D Leaky-Wave Antennas Based on Nematic Liquid Crystals

open access: yesApplied Sciences, 2022
The tunable properties of nematic liquid crystals (NLC) are here exploited in a peculiar leaky waveguide with artificial magnetic conductors as the lateral walls, a bottom metal ground plane, and a homogenized metasurface on top to obtain dynamic ...
Walter Fuscaldo   +5 more
doaj   +1 more source

Analysis and Design of Checkerboard Leaky-Wave Antennas With Low Radar Cross Section

open access: yesIEEE Open Journal of Antennas and Propagation, 2020
This paper addresses the analysis and design of a new class of metasurface leaky-wave antennas (LWAs) that inherently have low monostatic radar cross section (RCS) for normal incidence parallel polarization.
Subramanian Ramalingam   +3 more
doaj   +1 more source

Acoustic Leaky-Wave antenna

open access: yes2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, 2014
In the last years, the number of studies carried out in the field of acoustic metamaterials has significantly increased. In year 2009, our group proposed a concept of acoustic composite right/left hand transmission line (CRLH-TL) metamaterial, consisting of a waveguide periodically loaded with membranes along the duct, and transverse open channels ...
Esfahlani, Hussein   +2 more
openaire   +3 more sources

Linear fabry-perot/leaky-wave antennas excited by multiple sources [PDF]

open access: yes, 2018
Fabry-Perot (FP)/leaky-wave antennas fed with multiple sources are analyzed and modeled. A transmission line (TL) approach for a rapid and efficient analysis of such antenna configuration is developed.
Monorchio, Agostino   +3 more
core   +1 more source

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