Results 11 to 20 of about 705 (258)

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

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

Fabry-Perot Cavity Leaky Wave Antennas with Tunable Features for Terahertz Applications

open access: yesCondensed Matter, 2020
Terahertz (THz) radiation is a very appealing band of the electromagnetic spectrum due to its practical applications. In this context, the THz generation and manipulation is an essential part of the technological development.
Silvia Tofani, Walter Fuscaldo
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

Gap Waveguide Leaky-Wave Antenna

open access: yesIEEE Transactions on Antennas and Propagation, 2016
A novel leaky wave antenna, realized using gap waveguide concept, is here proposed. Both, the feeding structure and the antenna are realized in groove gap waveguide technology, thus simplifying the whole structure. A complete design procedure, starting from a given groove waveguide to the final radiation mechanism, is described in this paper.
Vukomanovic, Mladen   +4 more
openaire   +4 more sources

Improving directional radiation quality based on a gradient amplitude acoustic leaky wave antenna

open access: yesNew Journal of Physics, 2019
In this work, we show how to modify radiation amplitude with a leaky wave antenna to improve the quality of sound radiation. The designed gradient amplitude leaky wave antenna consists of a straight pipe with periodically loaded membranes, open channels ...
Jun Lan   +4 more
doaj   +1 more source

A wide‐angle forward to backward scanning wideband leaky‐wave antenna based on microstrip spoof surface plasmon polaritons

open access: yesIET Microwaves, Antennas & Propagation, 2022
In this work, a wide‐angle forward to backward scanning wideband leaky‐wave antenna (LWA) based on the microstrip spoof surface plasmon polaritons (SSPPs) transmission line (TL) is proposed.
Somia Sharma   +3 more
doaj   +1 more source

Topological One-Way Edge States in an Air-Hole Honeycomb Gyromagnetic Photonic Crystal

open access: yesFrontiers in Physics, 2022
Topological one-way edge states have attracted increasing attention because of their intriguing fundamental physics and potential applications, particularly in the realm of photonics. In this paper, we present a theoretical and numerical demonstration of
Chaoqun Peng   +4 more
doaj   +1 more source

Applications of AMC-based impedance surfaces

open access: yesEPJ Applied Metamaterials, 2018
The recent and major enhancements of artificial magnetic conductor (AMC) and their applications namely RCS reduction, low-profile antennas and holographic leaky wave antennas are reviewed.
Balanis Constantine A.   +4 more
doaj   +1 more source

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