Results 11 to 20 of about 611 (173)

High Efficiency and Broadband Microstrip Leaky-Wave Antenna [PDF]

open access: yesActive and Passive Electronic Components, 2008
A novel layout of leaky-wave antennas based on tapered design has been proposed and investigated. The new tapered leaky-wave antenna (LWA) was designed running a simple procedure which uses an FDTD code, and using a suitable metal walls down the ...
Onofrio Losito
doaj   +2 more sources

Full‐angle beam scanning leaky‐wave antenna array based on spoof surface plasmon polaritons

open access: yesIET Microwaves, Antennas & Propagation
A design scheme of high‐gain and full‐angle frequency beam scanning leaky wave antenna (LWA) and array is proposed based on spoof surface plasmon polaritons (SSPPs) slow‐wave transmission line (TL) for radar field applications.
Jun Wang   +4 more
doaj   +2 more sources

Slow‐Wave HMSIW‐SSPP Leaky‐Wave Antenna With Phase‐Shift Asymmetric Coupling for Continuous Beam Scanning

open access: yesIET Microwaves, Antennas & Propagation
A compact leaky‐wave antenna (LWA) with innovative phase‐shift asymmetric coupling for continuous beam scanning is presented. The antenna utilises a slow‐wave half‐mode substrate integrated waveguide with spoof surface plasmon polaritons (SW‐HMSIW‐SSPP ...
Yiming Zhang, Yuxi Liu, Sailing He
doaj   +2 more sources

An Extremely Low‐Profile Electronically Reconfigurable 1‐D X‐Band Leaky‐Wave Antenna

open access: yesIET Microwaves, Antennas & Propagation
In this work, a simple analytical model based on the array factor to effect 1‐bit electronic reconfigurability in one‐dimensional 1‐D leaky‐wave antennas (LWAs) is proposed. The model, based on the array factor, outlines the discrete control of the phase
Kevin Kipruto Mutai   +2 more
doaj   +2 more sources

One-dimensional leaky-wave antenna producing multiple beams [PDF]

open access: yesAIP Advances, 2017
In this paper, far-field pattern of one-dimensional leaky-wave antenna (LWA) is directly synthesized by sinusoidally modulating surface currents of the antenna.
Xiang Wan, Tian Yi Chen, Tie Jun Cui
doaj   +2 more sources

Dielectric EBG Leaky-Wave Antenna: Design and Experimental Validation [PDF]

open access: yesIEEE Open Journal of Antennas and Propagation
This paper proposes a novel Electromagnetic Band-Gap (EBG) leaky-wave antenna (LWA) operating in the K-band with enhanced directivity at broadside. A rigorous method that combines the analysis of the band diagrams of Bloch waves propagating within two ...
Ludovica Tognolatti   +5 more
doaj   +2 more sources

Optical phased arrays for wavefront shaping in forward scattering media. [PDF]

open access: yesNanophotonics
Abstract High‐resolution optical imaging in thick tissue samples remains elusive, mainly because of the scattering exhibited by the tissue. With increasing depth, the number of nonscattered photons exponentially decreases – limiting the use of conventional imaging techniques at depth.
Milojković F   +5 more
europepmc   +2 more sources

Terminal-Matched Topological Photonic Substrate-Integrated Waveguides and Antennas for Microwave Systems. [PDF]

open access: yesAdv Sci (Weinh)
Topological photonic substrate‐integrated waveguide is seamlessly integrated into the traditional microstrip line systems, achieving efficient coupling of both even and odd TP modes with the quasi‐transverse electromagnetic modes of the microstrip lines. This breakthrough minimizes energy losses and opens new possibilities for the practical application
Xu Z   +8 more
europepmc   +2 more sources

Beam scanning one-dimensional leaky-wave antenna [PDF]

open access: yes, 2022
Although the beam of a leaky-wave antenna (LWA) scans with frequency, steering through the broadside is usually challenging. Various methods have been developed to overcome this limitation.
Karmokar, D.K.
core   +1 more source

Continuous Scan of Radiation Beam from a Half-Width Microstrip Leaky-Wave Antenna at a Fixed Operating Frequency [PDF]

open access: yes, 2021
A leaky-wave antenna (LWA) that can scan a beam continuously at a fixed operating frequency is presented in this paper. A half-width (HW) microstrip LWA is considered as the main radiating element in which one edge of the microstrip is shorted to the ...
Karmokar, DK   +3 more
core   +1 more source

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