Results 31 to 40 of about 273,805 (290)
Meshed High-Impedance Matching Network-Free Rectenna Optimized for Additive Manufacturing
IEEE Open Journal of Antennas and Propagation, 2020 Additive manufacturing using direct-write or screen printing represent low-waste methods for fabricating antennas on low-cost flexible substrates. To realize rectennas using low-resolution printing methods, high-impedance antennas with simple printable ...
Mahmoud Wagih +2 more
doaj +1 more source
A hybrid time-domain model for pulsed terahertz dipole antennas [PDF]
Journal of the European Optical Society-Rapid Publications, 2009 In this paper we study the effect of the length of dipole antennas on the spectrum of the radiated THz signal in pulse-excited opto-electronic terahertz systems.
Ezdi K. +7 more
doaj +1 more source
An Optimal Electric Dipole Antenna Model and Its Field Propagation
International Journal of Antennas and Propagation, 2016 An optimal electric dipole antennas model is presented and analyzed, based on the hemispherical grounding equivalent model and the superposition principle.
Yidong Xu +4 more
doaj +1 more source
Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2
Advanced Functional Materials, EarlyView.High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon +6 more
wiley +1 more source
Journal of Microwaves, Optoelectronics and Electromagnetic ApplicationsThe study presented in this article is dedicated to the backfire disk-on-rod antennas fed by a dipole or crossed dipole. For short, these are herein called backfire antennas.
G. S. Kirov, H. D. Hristov
doaj +1 more source
IEEE Access, 2022 This study presents a dual-port single-dipole MIMO antenna pair, which is accomplished by selectively exciting the dominant dipole-type current mode and the second higher current mode of a single suspended metal strip. A magnetic coupling method based on
Longyue Qu, Haiyan Piao
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Advanced Functional Materials, EarlyView.Polarity‐matched Zr–MOFs program Nafion's nanoscale morphology during solution casting. Hydrophilic UiO‐66 preserves hydrated pathways, while hydrophobic UiO‐67 increases the proton hopping sites by densifying ionic clusters. Combining both fillers yields a membrane that delivers 176 mS cm−1 conductivity, reaches 1.46 W cm−2 under 200 kPa, and triples ...
Yonghwi Cho +13 more
wiley +1 more source
Pressure‐Assisted Dimensional Transformation of 2D Hydrogenated Borophene into 0D Boron Quantum Dots
Advanced Functional Materials, EarlyView.Hydrogenated borophene (HB) is transformed into distinct boron nanostructures through a solvent‐free thermal process. Under flowing nitrogen, hydrogen escape promotes reconstruction into B2O3 nanoplatelets, whereas hydrogen‐induced pressure under sealed conditions facilitates fragmentation into boron quantum dots.
Ozden Gunes Yildiz +11 more
wiley +1 more source
Broadband Wireless Optical Nanolink Composed by Dipole-Loop Nanoantennas
IEEE Photonics Journal, 2018 In this paper, a broadband wireless optical nanolink with plasmonic optical nanoantennas is theoretically proposed and analyzed. The nanolink is formed by linear dipole-loop nanoantennas for transmitter and receiver.
Janilson Leao de Souza +1 more
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Preferential Interfacial Engineering of Hydrogels via Interdigitated Nanoparticle Assembly
Advanced Functional Materials, EarlyView.Robust surface functionalization of hydrogel surfaces is performed via interdigitated metal nanoparticle assembly, inducing strong affinity with the hydrogel matrix. The partially exposed nanoparticle domains act as interfacial nanobridges that mediate both chemical and physical bonding with diverse materials, including small molecules, fluorous ...
Hyeonjin Kim +11 more
wiley +1 more source