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Digital waveguide models of the Panpipes
Published 2002-01-01“…Comparison of synthetic and real Panpipes sounds was also made and conclusions reached. …”
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On the problem of normal modes of a waveguide
Published 2024-12-01“…Various approaches to calculating normal modes of a closed waveguide are considered. A review of the literature was given, a comparison of the two formulations of this problem was made. …”
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MEASUREMENT OF SLOTTED WAVEGUIDE ANTENNA ARRAY DIRECTIVITY PATTERNS
Published 2016-11-01“…The waveguide-slotted antenna array (SWAA) near-field measurements were carried out in an anechoic chamber (AEC) with further far field conversion and the comparison with the results of numerical calculations and modeling were made. …”
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Waveguide quantum electrodynamics at the onset of spin-spin correlations
Published 2025-08-01“…Abstract Waveguide quantum electrodynamics studies interactions of matter with photons traveling via a transmission guide and how these can be exploited to control quantum emitters and to establish quantum correlations between them. …”
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Wideband Waveguide-to-Microstrip Transition for mm-Wave Applications
Published 2019-12-01“…In millimeter wave communication systems, the passive components of the antenna feeding system, which are based on hollow metal waveguides, and active elements of the radiofrequency circuit, which have an interface constructed on planar printed circuit boards (PCB) are interconnected using waveguide-to-microstrip transition.Aim. …”
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Flat Dielectric Waveguides of the Terahertz Range and Diffraction Antennas on Their Basis
Published 2024-11-01“…The existing CAD tools of electrodynamic modeling used to analyze complex waveguide structures of the microwave range employ the finite element method. …”
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Plastic Shaping of Concentrator-Waveguide Tip for Ultrasound Endovascular Ablation
Published 2021-04-01“…The paper presents results of preliminary calculations, numerical modeling and experimental studies of tip shaping processes of the concentrator-waveguide by distribution and crimping. On the basis of the finite element method in the environment of the ABAQUS software package, modeling of the expansion and crimping of a pipe billet was carried out, which has made it possible to: evaluate the stress-strain state of the deformable conical section of the billet, the change in wall thickness during the forming process and calculate the length of the billet for the design of the conical section; to establish the patterns of the influence of geometric parameters on the power modes of the distribution process; to set the parameters of the modes of forming the tip of the concentrator-waveguide by the method of distribution and crimping, which ensure the formation of the required geometry. …”
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Radiation by Transducer of Waveguide Type into Conical Half-Spaces Coaxial With It
Published 2020-02-01“…An expedient to use a generalized computational model for a more accurate description of the acoustic fields of real antenna models made up of TWT was concluded.…”
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Porous-Cladding Polydimethylsiloxane Optical Waveguide for Biomedical Pressure Sensing Applications
Published 2025-07-01“…The waveguide’s optical losses can be temperature-controlled during the fabrication process by controlling the quantity of microbubbles incorporated (2% approximately for samples made at 70 °C). …”
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Development of Traveling Wave Actuators Using Waveguides of Different Geometrical Forms
Published 2016-01-01“…All presented actuators are ultrasonic resonant devices and they were developed to increase amplitudes of the traveling wave oscillations of the contact surface. Three different waveguides are introduced, that is, symmetrical, asymmetrical, and cone type waveguide. …”
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Modeling of Coaxial Slot Waveguides Using Analytical and Numerical Approaches: Revisited
Published 2012-01-01“…Our reviews of analytical methods and numerical methods for coaxial slot waveguides are presented. The theories, background, and physical principles related to frequency-domain electromagnetic equations for coaxial waveguides are reassessed. …”
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Development of Low Profile Substrate Integrated Waveguide Horn Antenna with Improved Gain
Published 2016-11-01“…In this paper a new low profile Substrate Integrated Waveguide (SIW) probe-fed H-plane horn antenna structure with improved gain is proposed. …”
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Solution to the Eigenvalue Problem of Rectangular Waveguides with Partial Dielectric Filling by Fourier Transform
Published 2024-09-01“…The developed mathematical models made it possible to numerically evaluate the channeling properties of waveguides with dielectric filling in the microwave range.…”
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Ultrafast laser 3D nanolithography of organic–inorganic hybrid waveguide devices
Published 2025-02-01“…However, the three-dimensional (3D) bottom-up fabrication of on-chip functional structures, especially those made from inorganic materials rather than organic polymers, remains a challenge. …”
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Compact Optical Waveguides Based on Hybrid Index and Surface-Plasmon-Polariton Guidance Mechanisms
Published 2007-01-01“…Surface-plasmon-polariton (SPP) waveguides made of materials available in nature have, in general, been found to suffer from very high absorption loss when light confinement is beyond diffraction limit. …”
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Efficient Background-Noise-Reduced Single-Mode Waveguides Platform for On-Chip Integrated Photonics
Published 2019-01-01“…The metal screen of the connector—made of gold—prevents any penetration of the background radiation into the optical circuit, something which is not possible to achieve in all the cases using tapers or grating couplers. …”
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A 24 GHz End-Fire Rod Antenna Based on a Substrate Integrated Waveguide
Published 2025-03-01“…The antenna is made of PCB Rogers 4350 and utilizes the SIW to realize the end-fire rod antenna. …”
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Slow Light Enhanced Phase Shifter Based on Low-Loss Silicon-ITO Hollow Waveguide
Published 2019-01-01“…An optical phase shifter based on narrow-core hollow waveguide is proposed. The light is guided in an air core between the top and bottom reflectors made up of silicon and indium tin oxide (ITO) gratings. …”
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