Results 201 to 210 of about 760,205 (338)

A Dielectric Resonator Antenna with Enhanced Gain and Bandwidth for 5G Applications. [PDF]

Sensors (Basel), 2020
Ali I, Jamaluddin MH, Gaya A, Rahim HA.
europepmc   +1 more source

Mutual Coupling Reduction in Dielectric Resonator Antennas Using Metasurface Shield for 60-GHz MIMO Systems

IEEE Antennas and Wireless Propagation Letters, 2017
A. Dadgarpour, B. Zarghooni, B. Virdee, T. Denidni, A. Kishk   +4 more
semanticscholar   +1 more source

Electrically Assisted Thermal Stamping of Tunable Carbon‐Based Nanofilms for Direct Fabrication of Hydrophobic, Energy Harvesting, and Sensing Devices

Advanced Materials, EarlyView.
Schematic illustration of the electrically assisted thermal stamping (EATS) method for direct fabrication of carbon‐based nanofilms and their multifunctional applications. Localized Joule heating triggers simultaneous exfoliation, reduction, and fluoropolymer incorporation under ambient conditions, yielding tunable carbon‐based thin‐film coatings ...
Byungseok Seo, Yong Choi, Gajendra S. Shekhawat, Minjoong Shin, Kunmo Koo, Xiaobing Hu, Jiheon Kim, Wonjoon Choi, Xinqi Chen, Vinayak P. Dravid   +9 more
wiley   +1 more source

Compact organic liquid dielectric resonator antenna for air pressure sensing using soft material. [PDF]

Sci Rep, 2020
Low JH, Chee PS, Lim EH, Lee KY.
europepmc   +1 more source

Metal‐Loaded Dielectric Resonator Metasurfaces for Radiative Cooling

, 2017
C. Zou, G. Ren, M. M. Hossain, S. Nirantar, W. Withayachumnankul, Taimur Ahmed, M. Bhaskaran, S. Sriram, M. Gu, C. Fumeaux   +9 more
semanticscholar   +1 more source

Ultralow‐Frequency Epsilon‐Near‐Zero States in 3D‐Printed High‐Entropy Alloy Metacomposites for Ultra‐Thin Perfect RF Absorption

Advanced Materials, EarlyView.
Rozanov causality limit—a compulsive proportional thickness‐wavelength relationship (nd ∝ λ)—makes it challenging to develop perfect absorption with both thin thickness and low frequency. Herein, a cocktail effect in high‐entropy alloys (HEA) is crucially utilized for lowering plasma frequency to achieve epsilon‐near‐zero states, which finally enables ...
Peitao Xie, Haikun Wu, Zhenxiang Cheng, Mingxiang Liu, Yuan Liu, Weikong Pang, Runhua Fan, Yao Liu   +7 more
wiley   +1 more source

A Broadband Differential-Fed Dual-Polarized Hollow Cylindrical Dielectric Resonator Antenna for 5G Communications. [PDF]

Sensors (Basel), 2020
Fang X, Shi K, Sun Y.
europepmc   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX Applications. [PDF]

Sensors (Basel), 2020
Altaf A, Seo M.
europepmc   +1 more source

A Solid State Zwitterionic Plastic Crystal With High Static Dielectric Constant

Advanced Materials, EarlyView.
Developing solid high dielectric constant materials has been a research focus in the energy storage field. In this research, we discovered a zwitterion with a plastic crystal phase. Due to the short‐range degree of freedom of the dipole moment for this zwitterion, a relatively high static dielectric constant has been achieved in its solid state ...
Zitan Huang, Yifan Liu, Tiago Outerelo Corvo, Ain Uddin, Michelle L. Lehmann, Tomonori Saito, Valentino R. Cooper, Ralph H. Colby   +7 more
wiley   +1 more source