Results 21 to 30 of about 161,728 (292)
Sensors, 2023 Global and intercontinental networking relies on satellite communication. Its wireless communication system always has antennas and their feed assembly comprising waveguides. This makes the satellite payload heavy and costly.
Junghyun Cho +4 more
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AMoRE: Additive Manufacturing of RIS Elements
IEEE AccessA deep investigation of Reconfigurable Intelligent Surfaces (RIS) and Holographic MIMO (H-MIMO) surfaces in 5G and beyond systems requires numerous tests with various prototypes.
Andrey Tyarin +4 more
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Microwave Components Realized by Additive Manufacturing Techniques [PDF]
Radioengineering, 2020 This paper presents an overview of the use of additive manufacturing (AM) technologies for the implementation of microwave components. Two major technological solutions, based on the AM of plastic materials, are discussed: in the former case, the AM ...
C. Tomassoni, M. Bozzi
doaj
PhotonicsIn this study, a traveling wave Mach-Zehnder intensity modulator (TW-MZM) was designed and optimized for six different electro-optical (EO) crystals: lithium niobate (LNB), potassium niobate (KNB), lithium titanate (LTO), beta barium borate (BBO ...
Abtin Ataei +2 more
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Second-Harmonic Generation in Suspended AlGaAs Waveguides: A Comparative Study
Micromachines, 2020 Due to adjustable modal birefringence, suspended AlGaAs optical waveguides with submicron transverse sections can support phase-matched frequency mixing in the whole material transparency range, even close to the material bandgap, by tuning the width-to ...
Iännis Roland +6 more
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Advanced Engineering Materials, EarlyView.Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar +5 more
wiley +1 more source
IEEE Photonics Journal, 2016 We have proposed a reverse ridge strip waveguide and a slot waveguide structure for the dispersion compensation at 1550 nm wavelength. The resonance between strip- and slot-waveguide modes has been used to calculate the dispersion at the required ...
Ashok Nandam +3 more
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Advanced Engineering Materials, EarlyView.A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya +3 more
wiley +1 more source
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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IEEE Access, 2023 This paper reports a theoretical study of supercontinuum generation with a novel dispersion-engineered reverse rib waveguide design using chalcogenide materials such as As2Se3 glass as a core, GeAsSe and GeAsS as cladding.
V. Hitaishi, Nandam Ashok
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