Results 71 to 80 of about 85,692 (393)

Experimental investigation of the effects of polarization on the measured radiation efficiency of a dielectric resonator antenna [PDF]

open access: yes, 2008
©2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any ...
Almpanis, G.   +4 more
core   +1 more source

Multimode Hybrid Antennas Using Liquid Dielectric Resonator and Magneto-Electric Dipole

open access: yesIEEE Transactions on Antennas and Propagation, 2020
This article presents a new type of hybrid antenna that combines the multiresonant modes produced by a liquid dielectric resonator antenna (DRA) and a magnetoelectric (ME) dipole.
Chaoyun Song   +3 more
semanticscholar   +1 more source

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

open access: yesAdvanced Functional Materials, EarlyView.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To   +5 more
wiley   +1 more source

A Comprehensive Review of Metasurface Structures Suitable for RF Energy Harvesting

open access: yesIEEE Access, 2020
Energy harvesting (EH) or scavenging is recognized as harvesting energy from ambient energy sources in the surrounding environment. This paper reports a literature review on radio frequency (RF) EH using different metasurface/metamaterial structures ...
Abdulrahman Ahmed Ghaleb Amer   +4 more
doaj   +1 more source

Metal-Dielectric Nanopillar Antenna-Resonators for Efficient Collected Photon Rate from Silicon Carbide Color Centers

open access: yesNanomaterials, 2023
A yet unresolved challenge in developing quantum technologies based on color centres in high refractive index semiconductors is the efficient fluorescence enhancement of point defects in bulk materials.
Faraz Ahmed Inam, Stefania Castelletto
doaj   +1 more source

Experimental Study of Electrophoretic Deposited Carbon Nanotubes on Microstrip Transmission Line Resonators and Filters [PDF]

open access: yes, 2013
The electrical properties of single-walled carbon nanotube electrophoreses deposition on different types of gold-plated microstrip devices are investigated.
Diniz, E., Sinha, S., Stander, T.
core   +1 more source

Dielectric Resonator Antennas: Basic Concepts, Design Guidelines, and Recent Developments at Millimeter-Wave Frequencies

open access: yes, 2016
An up-to-date literature overview on relevant approaches for controlling circuital characteristics and radiation properties of dielectric resonator antennas (DRAs) is presented.
S. Keyrouz, D. Caratelli
semanticscholar   +1 more source

Photonic Engineering Enables All‐Passive Upconversion Imaging with Low‐Intensity Near‐Infrared Light

open access: yesAdvanced Functional Materials, EarlyView.
A passive upconversion imaging system enables the observation of scenes illuminated by low‐intensity incoherent near‐infrared light from 750 to 930 nm, by converting it into the visible without the use of external power. The upconverter is enabled by triplet–triplet annihilation in a bulk heterojunction, with absorption enhanced by plasmonic resonators
Rabeeya Hamid   +13 more
wiley   +1 more source

A Study of Wideband Dielectric Resonator Antennas Loaded With Special Dispersive Materials

open access: yesIEEE Open Journal of Antennas and Propagation
In this paper, a comprehensive study of wideband dielectric resonator antennas (DRAs) loaded with special dispersive materials is given in detail. The concept and theory for a new class of wideband and compact DRAs are introduced for the first time using
Xiantao Yang   +5 more
doaj   +1 more source

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