Results 21 to 30 of about 766,280 (111)

MM-Wave High Isolated Dual Polarized Dielectric Resonator Antenna for In-Band Full-Duplex Systems

open access: yesIEEE Access, 2023
A novel high-isolation dual-polarized in-band full-duplex (IBFD) dielectric resonator antenna (DRA) for satellite communications using a decoupling structure is proposed.
Mohammad Abedian   +5 more
doaj   +1 more source

Investigation on Harmonic Tuning for Active Ku-Band Rectangular Dielectric Resonator Antennas

open access: yesInternational Journal of Antennas and Propagation, 2008
A slot-coupled rectangular dielectric resonator antenna (DRA) operating in the 14–14.5 GHz frequency band is investigated as a possible radiating element for an active integrated antenna of a transmitting phased array.
Anda Guraliuc   +4 more
doaj   +1 more source

Parametric Study of a Fully 3D-Printed Dielectric Resonator Antenna Loaded With a Metallic Cap

open access: yesIEEE Access, 2021
This article presents a parametric study of a fully 3D-printed hemispherical dielectric resonator antenna (DRA) using low loss dielectric filament and high-conductive filaments jointly with a low-cost customized dual-extruding 3D printer.
Matias Cuevas   +4 more
doaj   +1 more source

Application of Al2O3 ceramic for a circularly polarized filtering antenna

open access: yesAlexandria Engineering Journal
The application of ceramic for a circularly polarized (CP) filtering antenna is studied in this paper. The dielectric resonator (DR) of sintered aluminum oxide (Al2O3) ceramic has a dielectric constant of 9.5 and low dielectric loss of 0.003, and ...
Ke Xia, Hai-Feng Zhang
doaj   +1 more source

Metallic post-array loaded cylindrical dielectric resonator antenna

open access: yesThe Journal of Engineering, 2016
An investigation of a novel cylindrical dielectric resonator antenna (DRA) configuration has been carried out. It is shown that two resonances including the full- and half-cylindrical HE(11δ)-like modes can coexist simultaneously at different frequencies
Byeong-Yong Park   +2 more
doaj   +1 more source

Miniaturization of Dielectric Resonator Antenna by Using Artificial Magnetic Conductor Surface

open access: yesIEEE Access, 2020
In this work, a dielectric resonator antenna (DRA) is miniaturized by using Artificial Magnetic conductor (AMC) surface without disturbing other important parameters.
Shahid Khan   +6 more
doaj   +1 more source

High gain circularly polarized graphene inspired dielectric resonator antenna for 6G IOT THz optical communication and optical refractive index Biosensing applications

open access: yesEngineering Science and Technology, an International Journal
In this article a high gain (≈13dBi) circularly polarized dielectric resonator antenna (DRA) has been designed with silicon and graphene based nano materials for 6G terahertz (THz) nano communication and bio sensing applications. This antenna having 2.2 %
Shipra Srivastava   +4 more
doaj   +1 more source

Wideband Circularly Polarized Millimeter Wave Hemispherical Dielectric Resonator Antenna

open access: yesMicromachines, 2023
A novel approach is proposed to design a circularly polarized (CP) hemispherical dielectric resonator antenna (DRA) with a wide axial ratio (AR) bandwidth by incorporating an additional dielectric substrate between the antenna and the ground plane.
Meshari D. Alanazi, Salam K. Khamas
doaj   +1 more source

Shear Piezoelectricity in Poly(L‐Lactic Acid): From Molecular Chirality to Regenerative Materials Design

open access: yesSmall Structures, Volume 7, Issue 7, July 2026.
This review highlights how PLLA's molecular chirality and noncentrosymmetric chain packing generate intrinsic shear piezoelectricity without electrical poling, while crystallinity, optical purity, and molecular orientation define its design space. By distinguishing intrinsic d14 from device‐level outputs and connecting processing strategies to tissue ...
Soonjong Roh, Youngmee Jung, Jin Yoo
wiley   +1 more source

Dual-Band Dielectric Resonator Antenna for C and X Band Application

open access: yesInternational Journal of Antennas and Propagation, 2012
The proposed technique combines a slot antenna and a dielectric resonator antenna (DRA) to effectively design a dual band dielectric resonant antenna without compromising miniaturization or its efficiency.
Deepak Batra   +2 more
doaj   +1 more source

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