Results 11 to 20 of about 2,199 (214)

Rapid Prototyping of Bio-Inspired Dielectric Resonator Antennas for Sub-6 GHz Applications [PDF]

open access: yesMicromachines, 2021
Bio-inspired Dielectric Resonator Antennas (DRAs) are engaging more and more attention from the scientific community due to their exceptional wideband characteristic, which is especially desirable for the implementation of 5G communications. Nonetheless,
Valeria Marrocco   +7 more
doaj   +2 more sources

Composition-engineered Sr1−xBaxTiO3 for high-efficiency dielectric resonator antennas in 5G/6G bands [PDF]

open access: yesScientific Reports
We report Sr1−xBaxTiO3 (x = 0.0–0.4) nanoparticles synthesized by a tartrate-precursor combustion route and evaluate them for sub-6 GHz dielectric resonator antennas (DRAs).
Moustafa A. Darwish   +8 more
doaj   +2 more sources

3D printing and pressureless sintering of Li2TiO3 for next generation dielectric resonator antennas [PDF]

open access: yesScientific Reports
Direct-write additively manufactured (AM) high-performance lithium titanate (Li2TiO3) microwave RF ceramic with comparable density, dielectric constant, dielectric loss, and quality factor to traditionally made equivalents is demonstrated. Increasing the
Jason M. Summers   +8 more
doaj   +2 more sources

Circular polarized 3D-printed cylindrical DRA using parasitic dielectric helix

open access: yesScientific Reports, 2023
This article presents a 3D-printed cylindrical dielectric resonator antenna operating at 5.8 GHz that achieves circular polarization by integrating a fully dielectric parasitic helix with a higher permittivity than the cylindrical resonator.
Sebastian Diaz   +3 more
doaj   +1 more source

OMNIDIRECTIONAL MILLIMETER-WAVELENGTH ANTENNAS BASED ON SEGMENTAL DIELECTRIC RESONATORS WHICH SUPPORT WHISPERING GALLERY MODES [PDF]

open access: yesRadio Physics and Radio Astronomy, 2023
Subject and Purpose. The subject of investigation is a new class of resonant-type transmit antennas intended for operation at millimeter wavelengths.
A. E. Kogut   +7 more
doaj   +1 more source

Dielectric Resonator Antenna Geometry-Dependent Performance Tradeoffs

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
A flexible shape generation technique (Surface Contour Shape Generation) is combined with multiobjective evolutionary optimization algorithms in order to synthesize geometrically-diverse dielectric resonator antennas and explore the impact geometry has ...
Eric B. Whiting   +3 more
doaj   +1 more source

Chiral Dielectric Metasurfaces for Highly Integrated, Broadband Circularly Polarized Antenna

open access: yesSensors, 2021
We report on the design of a low-profile integrated millimeter-wave antenna for efficient and broadband circularly polarized electromagnetic radiation.
Bruno Ferreira-Gomes   +2 more
doaj   +1 more source

Thermally tunable slot-coupled dielectric resonator antenna

open access: yesAIP Advances, 2017
A thermally tunable slot-coupled dielectric resonator antenna (DRA) has been designed and prepared by placing a thermosensitive ceramic resonator onto the slot.
Ke Bi   +7 more
doaj   +1 more source

Progress in Differentially Fed Dielectric Resonator Antennas

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2020
A differentially fed dielectric resonator antenna(DRA), which shows the advantages of both a DRA and a differentially fed antenna, has attracted extensive attention recently. In this paper, the characteristics of the operation modes and feeding mechanism
TANG Hui;CHEN Jianxin
doaj   +1 more source

Transparent Antenna Technology and Its Application in Space [PDF]

open access: yesفناوری در مهندسی هوافضا, 2020
This paper is focused on the application of transparent antennas to address the issues related to the unpleasant appearance and non-aerodynamic behavior of traditional antennas. Transparent antennas are divided in two main categories.
Negin Kourosdari   +2 more
doaj  

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