Results 41 to 50 of about 27,868 (264)
Compact
IEEE AccessThis paper presents a compact Ku-band monopulse comparator with enhanced inter-port balance and isolation. The key component, a magic-T, was designed using an offset two-step rectangular prism and an iris to improve impedance matching and isolation while
Jongmin Lee +4 more
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A method for generating a microwave vortex field [PDF]
Компьютерная оптика, 2019 In this paper, we propose an on-end structure of a circular waveguide that forms a vortex field of the microwave range. We construct its numerical model.
Dmitrii Poletaev, Bogdan Sokolenko
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Twin Crystal Moiré Metasurfaces for Crossing Flat‐Band Transport
Advanced Functional Materials, EarlyView.This study introduces twin crystal moiré metasurfaces, breaking in‐plane symmetry to enable reconfigurable acoustic wave manipulation. By adjusting the twin angle and interlayer twist angle, various combinations of hyperbolic, flat bands, and elliptic states can be synthesized in the system.
Shida Fan +9 more
wiley +1 more source
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2023 В статье приводятся результаты компьютерного моделирования распространения плоской электромагнитной волны. Грозовые разряды являются естественными источниками импульсного электромагнитного излучения (атмосферика).
Твёрдый, Д.А. +1 more
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Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Design and Implementation of a Ku Band Waveguide Energy-Selective Device
PhotonicsThis paper presents a waveguide energy-selective device operating in the Ku band. By utilizing the nonlinear characteristics of PIN diodes, the device can autonomously switch its operating state according to the power level of incident signals inside the
Tongxin Liu +3 more
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Directional Flow of Confined Polaritons in CrSBr
Advanced Materials, EarlyView.CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak +10 more
wiley +1 more source
Design and implementation of microwave attenuation measurements to estimate the dry rubber content of natural rubber latex [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2015 An accurate, quick and practical method for measuring the dry rubber content (DRC) in natural rubber latex is proposed and investigated experimentally, based on microwaves.
Pattara Aiyarak, Piti Sunheem
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Role of the Recombination Zone in Organic Light‐Emitting Devices
Advanced Materials, EarlyView.This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley +1 more source
Effective thickness of gallium arsenide on the transverse electric and transverse magnetic modes
Curved and Layered StructuresThe aim of this work is to investigate gallium arsenide, a particular kind of semiconductor. The study employs a three-layer asymmetric slab waveguide structure, where a thin gallium arsenide (GaAs) film is deposited on a glass substrate, and above the ...
Alwan Saib Thiab +2 more
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