Results 51 to 60 of about 923 (173)

Sinusoidally-Modulated Graphene Leaky-Wave Antenna for Electronic Beamscanning at THz

open access: yes, 2014
This paper proposes the concept, analysis and design of a sinusoidally-modulated graphene leaky-wave antenna with beam scanning capabilities at a fixed frequency.
Esquius-Morote, Marc   +2 more
core   +1 more source

Diseño y aplicaciones de sistemas de antenas inteligentes para redes inalámbricas en el contexto de la internet de las cosas [PDF]

open access: yes, 2023
[SPA] Esta tesis doctoral se presenta bajo la modalidad de compendio de publicaciones. Las antenas de onda de fuga (LWA) consisten en una estructura de guía de onda que permite la fuga de parte de la potencia a lo largo de la estructura. Por esta razón,
Gil Martínez, Alejandro Rafael
core   +1 more source

A Miniaturized Reconfigurable CRLH Leaky-Wave Antenna Using Complementary Split-Ring Resonators

open access: yesJournal of Electrical and Computer Engineering, 2018
Composite Right-/Left-Handed (CRLH) Leaky-Wave Antennas (LWAs) are a class of radiating elements characterized by an electronically steerable radiation pattern. The design is comprised of a cascade of CRLH unit cells populated with varactor diodes.
Damiano Patron   +2 more
doaj   +1 more source

Pencil-Beam Single-point-fed Dirac Leaky-Wave Antenna on a Transmission-Line Grid

open access: yes, 2016
Leaky-wave antennas (LWAs) are widely used as single-point-fed linear antenna arrays. The extension of LWAs to 2D implies that they can be used as single-point-fed 2D antenna arrays without requiring a complex feeding network.
Dorrah, Ayman H.   +1 more
core   +1 more source

Analysis of transmission lines loaded with pairs of coupled resonant elements and application to sensors [PDF]

open access: yes, 2015
This paper is focused on the analysis of transmission lines loaded with pairs of magnetically coupled resonators. We have considered two different structures: (i) a microstrip line loaded with pairs of stepped impedance resonators (SIRs), and (ii) a ...
Martín, Ferran,   +3 more
core   +2 more sources

DOA Estimation of Coherent Signals Based on EPUMA Method With Frequency Beam Scanning Leaky-Wave Antennas

open access: yesIEEE Access, 2023
A technique to estimate the DOAs of coherent sources using a passive frequency beam scanning leaky-wave antenna (FBS-LWA) with a subspace based method is presented.
Diyuan Xu   +4 more
doaj   +1 more source

Controlling the Electromagnetic Field Confinement with Metamaterials [PDF]

open access: yes, 2016
The definition of a precise illumination region is essential in many applications where the electromagnetic field should be confined in some specific volume.
A Brown   +14 more
core   +2 more sources

Sub‐THz Antenna With Graphene Enabled Beam Steering for THz Communication

open access: yesEngineering Reports, Volume 7, Issue 8, August 2025.
This study introduces a sub‐THz planar antenna for THz communication and sensing with beam steering capabilities. Using a SiO2 substrate, copper radiating elements, and graphene slits, the design achieves a 29 GHz bandwidth at a 0.3 THz center frequency.
Sher Nawaz   +3 more
wiley   +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

Reconfigurable SIW-Based Leaky-Wave Antenna Composed of Longitudinal Cells

open access: yesIEEE Access, 2021
A novel fixed frequency beam-steering leaky-wave antenna (LWA) is presented in this manuscript. Radiation occurs through thin offset longitudinal slots etched on a substrate integrated waveguide (SIW).
Nima Javanbakht   +3 more
doaj   +1 more source

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