Results 91 to 100 of about 6,834 (265)

Performance evaluation of planar dipole antenna for smart home applications. [PDF]

Heliyon, 2023
Asiya AE, Ojomu SA, Erim CM, Oku DE, Aloamaka AC.   +4 more
europepmc   +1 more source

Defect‐Engineered Microwave‐Responsive Ni@C Composites From Waste PET for Catalytic Plastic Upcycling

Advanced Materials, EarlyView.
A circular upcycling strategy transforms waste poly(ethylene terephthalate) bottles into microwave‐responsive Ni@C catalyst featuring lattice‐distorted nickel cores and defective carbon shells. These strain‐rich heterointerfaces enhance dielectric loss and promote localized microwave hotspots, accelerating peroxymonosulfate activation and polymer‐chain
Xiao Lu, Shiying Ren, Jingkai Lin, Kunsheng Hu, Yalan Mo, Shaobin Wang, Wenjie Tian, Xiaoguang Duan   +7 more
wiley   +1 more source

Ti3C2Tx MXene/Silver Composite Foams For Lightweight, High‐Performance Electromagnetic Interference Shielding and Joule Heating

Advanced Materials Interfaces, EarlyView.
Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood, Mingxuan Li, Vahid Rad, Mehdi Zarei, Chen‐Yu Yeh, Masoud Soroush, Guangyong Li, Paul W. Leu   +7 more
wiley   +1 more source

Terahertz Reconfigurable Planar Graphene Hybrid Yagi–Uda Antenna

Nanomaterials
In this paper, we design a frequency reconfigurable antenna for terahertz communication. The antenna is based on a Yagi design, with the main radiating elements being a pair of dipole antennas printed on the top and bottom of a dielectric substrate ...
Qimeng Liu, Renbin Zhong, Boli Xu, Jiale Dong, Gefu Teng, Ke Zhong, Zhenhua Wu, Kaichun Zhang, Min Hu, Diwei Liu   +9 more
doaj   +1 more source

Performance and B1 Efficiency Analysis of Different Dipole Antenna Types at 7T. [PDF]

Proc Int Soc Magn Reson Med Sci Meet Exhib Int Soc Magn Reson Med Sci Meet Exhib, 2023
Bhosale AA, Zhang X.
europepmc   +1 more source

Band Alignment and Composition of the Buried TiO2/GaInP Interface

Advanced Materials Interfaces, EarlyView.
Buried TiO2$\text{TiO}_2$/GaInP interfaces formed by mild plasma‐enhanced ALD are shown to be largely insensitive to the initial GaInP surface condition. Angle‐dependent photoelectron spectroscopy reveals similar interfacial chemistry and band alignment for phosphorus‐rich and naturally oxidized surfaces, demonstrating a robust pathway for reproducible
David Ostheimer, Sahar Shekarabi, Julius Kühne, Mohammad Amin Zare Pour, Kai Daniel Hanke, Chris Yannic Bohlemann, Juliane Koch, Oliver Bienek, Agnieszka Paszuk, Wolfram Jaegermann, Ian D. Sharp, Thomas Hannappel   +11 more
wiley   +1 more source

Improvement and Optimization of Thin Dipole for UWB Applications

Majlesi Journal of Electrical Engineering
In this paper, thin dipole is investigated in the 3.1-10.6 GHz Ultra-Wide Band frequency range. The study includes the design of half wave dipole antenna with different dipole radii to improve the antenna characteristics.
Duygu Nazan Gençoğlan, Şule Çolak   +1 more
doaj  

High gain quasi-omnidirectional dipole array fed by radial power divider for millimeter-wave IoT sensing

Scientific Reports
This article presents the design and implementation of a dipole array antenna based on a radial waveguide power divider for millimeter-wave IoT sensing applications.
Md. Abu Sufian, Niamat Hussain, Domin Choi, Sang-Min Lee, Sang-Keun Gil, Nam Kim   +5 more
doaj   +1 more source

A Compact MIMO Antenna Based on Modal Analysis for 5G Wireless Applications

Micromachines
This article presents a planar, non-angular, series-fed, dual-element dipole array MIMO antenna operating at 28 GHz with the metasurface-based isolation improvement technique.
Parveez Shariff Bhadravathi Ghouse, Deepthi Mariam John, Pallavi R. Mane, Debdeep Saha, Supreetha Balavalikar Shivarama, Sameena Pathan, Bharathi Raghavendra Bhat, Shweta Vincent, Tanweer Ali   +8 more
doaj   +1 more source

Low-Profile Broadband Dual-Polarized Dipole Antenna for Base Station Applications. [PDF]

Sensors (Basel), 2023
Feng H, Li M, Zhang Z, Fu J, Zhang Q, Zhao Y.   +5 more
europepmc   +1 more source