Results 21 to 30 of about 85,692 (393)

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

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

Design and Manufacturing of Super-Shaped Dielectric Resonator Antennas for 5G Applications Using Stereolithography

open access: yesIEEE Access, 2020
In this work, the inverted micro-Stereolithography (SLA) is used to show the potential of such additive manufacturing (AM) technology at prototyping super-shaped dielectric resonator antennas (S-DRAs) rapidly and accurately.
V. Basile   +6 more
semanticscholar   +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

Towards Accurate Dielectric Property Retrieval of Biological Tissues for Blood Glucose Monitoring [PDF]

open access: yes, 2014
(c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works for resale or ...
Foster, R, Hao, Y, Yilmaz, T
core   +1 more source

All-dielectric multi-resonant bullseye antennas

open access: yesOptics Express, 2022
Integrated devices that generate multiple optical resonances in the same volume can enhance on-chip nonlinear frequency generation, nonlinear spectroscopy, and quantum sensing. Here, we demonstrate circular Bragg antennas that exhibit multiple spatially overlapping, polarization-selective optical resonances.
Amy, Butcher, Alexander A, High
openaire   +2 more sources

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

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

Study on the performance deterioration of flexible UWB antenna [PDF]

open access: yes, 2009
A flexible transparent film uwb antenna for curved surfaces has been designed and developed for wireless communications. The antenna has demonstrated good performance over the entire UWB bandwidth.
Nilavalan, R, Peter, T
core   +2 more sources

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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