Results 231 to 240 of about 19,229 (302)

Defected ground structure antenna array with metasurface inspired interlinked CSRR for 5G millimeter wave applications. [PDF]

Sci Rep
Ali EM, Alibakhshikenari M, Elmunim NA, Virdee BS, Rashid N, Mariyanayagam D, Chaudhary MA, Abbasi NA, Livreri P, Saber T.   +9 more
europepmc   +1 more source

Dipole‐Quadrupole Model and Multipole Analysis of Resonant Membrane Metasurfaces

Laser &Photonics Reviews, EarlyView.
Membrane metasurfaces, arrays of holes in a dielectric membrane, are appealing because they require no substrate and allow access to resonant near‐fields. However, developing a comprehensive theoretical description for them remains challenging. We introduce a semi‐analytical dipole‐quadrupole approach to analyze their resonant spectra at arbitrary ...
Izzatjon Allayarov, Andrey B. Evlyukhin, Antonio Calà Lesina   +2 more
wiley   +1 more source

Compact dual-band antenna array for environmental monitoring systems. [PDF]

Sci Rep
El Swiefy BH, Abd El-Hameed AS, Eldamak AR, ELsadek H, El-Hennawy HM.   +4 more
europepmc   +1 more source

Topological Photonic Devices and Circuits at Terahertz Frequencies

Laser &Photonics Reviews, EarlyView.
This review examines how 3D topological insulators and emerging topological photonic phases enable robust, low‐loss and defect‐immune terahertz devices. Fundamental properties, device implementations and topological transport mechanisms are surveyed, revealing new opportunities for reconfigurable, high‐performance THz components and scalable ...
Samane Kalhor, Srabani Kar, Ranjan Singh, Kaveh Delfanazari   +3 more
wiley   +1 more source

Non-Uniform Antenna Array for Enhanced Medical Microwave Imaging. [PDF]

Sensors (Basel)
Abbosh YM, Sultan K, Guo L, Abbosh A.
europepmc   +1 more source

Two‐Dimensional Transition Metal Dichalcogenides Properties Enhanced by Nano‐ and Micro‐Scale Shape Control

MetalMat, EarlyView.
This review explores current strategies for shaping two‐dimensional transition metal dichalcogenides (TMDs) beyond their planar form. It highlights how strain engineering, nanopatterning, and growth on complex substrates modulate their mechanical, optical, and electronic properties.
C. Grazianetti, G. Zambito, D. Campi, M. C. Giordano, F. Buatier de Mongeot, A. Molle, C. Martella   +6 more
wiley   +1 more source

Regression machine learning-based highly efficient dual band MIMO antenna design for mm-Wave 5G application and gain prediction. [PDF]

Sci Rep
Ananta RA, Haque MA, Alyami G, Ahammed MS, Ahmed MK, Singh NSS, Rahman MA, Shaman H, Abdallah HA, Ateya AA.   +9 more
europepmc   +1 more source

Characterization of Fuel Rods Supported by Dimple‐Less Spacer Grids and Subjected to Nonlinear Vibrations

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT An experimental campaign was undertaken to demonstrate the applicability of the Bouc–Wen hysteretic model to describe the hysteretic system of the recent Framatome dimple‐less spacer grid design for Pressurized Water Reactors. The experimental setup subjected a reduced‐length fuel rod, supported at both ends by dimple‐less grids, to forced ...
Giovanni Ferrari, Brian Painter, Kostas Karazis, Marco Amabili   +3 more
wiley   +1 more source

Application of the principle of collapsed distributions to the detection of faulty elements in square grid antenna arrays. [PDF]

Sci Rep
Parkinson-Oreiro DM, López-Martín ME, Rodríguez-González JA, Ares-Pena FJ.   +3 more
europepmc   +1 more source

Anisotropy Analysis of Bamboo and Tooth Using 4‐Angle Polarization Micro‐Spectroscopy

Nano Select, EarlyView.
Super‐resolution via orientation: spatial distribution of specific molecular vibrations are revealed at 1/20 of the diffraction limit. ABSTRACT To investigate the anisotropic properties of biomaterials, two distinct classes are considered as follows: polymer‐based (cellulose in plants) and crystalline‐based (enamel in teeth), each demonstrating ...
Meguya Ryu, Hsin‐Hui Huang, Jitraporn Vongsvivut, Soon Hock Ng, Irma Dumbrytė, Donatas Narbutis, Mangirdas Malinauskas, Saulius Juodkazis, Junko Morikawa   +8 more
wiley   +1 more source