Results 21 to 30 of about 3,502 (339)

H-Plane-Scanning Multibeam Leaky-Wave Antenna for Wide-Angular-Range AoA Estimation at mm-wave

open access: yesEuropean Conference on Antennas and Propagation, 2023
A fully-metallic periodic leaky-wave antenna wellsuited for angle-of-arrival estimation with a reduced frequency bandwidth is presented. The design is based on a leaky rectangular waveguide loaded with corrugations and periodically modulated by ...
J. Sarrazin, G. Valério
semanticscholar   +1 more source

Investigation of the Leaky-Wave Characteristics of a Cylindrical Dielectric Rod Using the Coefficient Matrix of the System of Characteristic Equations and Davidenko’s Method [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2021
An open dielectric waveguide includes both guided propagating modes within the waveguide and radiating and evanescent modes that propagate transversely outside the waveguide.
Ersoy Kelebekler
doaj   +1 more source

Slotted Waveguide Circularly Polarized Leaky Wave Antenna With Improved Efficiency at W-Band

open access: yesIEEE Access, 2023
This article presents a high-efficiency circularly polarized slotted waveguide leaky wave antenna for the W band frequency range. The wall thickness of the slotted waveguide leaky wave antenna containing the radiating slots is tuned to optimize the ...
Shilpi Singh   +2 more
doaj   +1 more source

SIW Leaky Wave Antenna for THz Applications

open access: yesElectronics, 2023
This paper proposes a new design of leaky wave antenna (LWA) based on substrate integrated waveguide (SIW) technology for THz applications. The suggested LWA structure has a combination of longitudinal and transverse slots and makes a 10-element linear ...
V. Arya   +2 more
semanticscholar   +1 more source

Reconfigurable Leaky Wave Antenna based on Metamaterial Substrate Integrated Waveguide for 5G oriented beamsteering application [PDF]

open access: yes, 2022
This work presents the study and the development of a Leaky Wave Antenna, based on a Composite Right-Left Handed transmission line and a Substrate Integrated Waveguide.
Fortuni, Guglielmo
core  

High Gain Periodic 2-D Leaky-Wave Antenna With Backward Radiation for Millimeter-Wave Band

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
A two-dimensional (2D) periodic leaky-wave antenna (LWA) is proposed in this article. Using dielectric-filled wedge-like waveguide as medium for wave propagation, the quasi-TEM wave inside the guide is leaked through periodic rings of narrow slots ...
Abdullah Attar, Abdel Razik Sebak
doaj   +1 more source

Wide-Angle Beam-Steering and Adaptive Impedance Matching With Reconfigurable Nonlocal Leaky-Wave Antenna

open access: yesIEEE Open Journal of Antennas and Propagation, 2022
We present a simple reconfigurable leaky-wave antenna (LWA) capable of fixed-frequency continuous beam-scanning, along with an efficient optimization procedure with which its radiation pattern can be shaped.
Gengyu Xu, G. Eleftheriades, S. Hum
semanticscholar   +1 more source

Single-Side-Scanning Surface Waveguide Leaky-Wave Antenna Using Spoof Surface Plasmon Excitation

open access: yesIEEE Access, 2018
A surface waveguide (SWG) leaky-wave antenna featuring directional single-side beam scanning capability is presented. A novelty of the design is that transition design utilizes the spoof surface plasmon (SSP) as an intermedia to feed the SWG, which ...
Shangkun Ge   +4 more
doaj   +1 more source

A Multi-Frequency Patch Antenna With Double Sided Parallel Strip Line Periodic Structure

open access: yesIEEE Access, 2020
A multi-frequency patch antenna with double-sided parallel-strip line (DSPSL) periodic offset structure is proposed. The designed antenna consists of a simple rectangular patch as well as an embedded one-dimensional DSPSL periodic offset structure, which
Kebin Liu   +5 more
doaj   +1 more source

Reconfigurable THz Fixed-Frequency Beamscanning Through a Liquid-Crystal-Loaded Leaky Waveguide Operating in Its Fundamental TE Mode

open access: yesIEEE Access, 2023
A rectangular metallic leaky waveguide loaded with liquid crystals (LC) and operating in its fundamental TE mode at 1 THz is proposed to mitigate the well-known trade-off between directivity and tunable angular range of dynamic beamscanning antennas. The
Walter Fuscaldo   +4 more
doaj   +1 more source

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