Results 11 to 20 of about 2,185 (217)
An Analysis of the Acoustic Input Impedance of the Ear [PDF]
Journal of the Association for Research in Otolaryngology, 2013 Ear canal acoustics was examined using a one-dimensional lossy transmission line with a distributed load impedance to model the ear. The acoustic input impedance of the ear was derived from sound pressure measurements in the ear canal of healthy human ears. A nonlinear least squares fit of the model to data generated estimates for ear canal radius, ear
Robert H, Withnell, Lauren E, Gowdy
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Analysis of Input Impedance of the Traction Vehicle with DC Chopper as a Function of Operation Mode
Communications, 2007 A problem of analysis of the input impedance of a converter traction vehicle is presented in the paper. The value of input impedance of a traction vehicle has significant influence of compatibility between track circuits and traction vehicles.
Adam Szeląg, Marcin Steczek
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High-Efficiency Dual-Band Rectifier with Extended Dynamic Frequency Ranges based on Independent Dual-Band Impedance Control [PDF]
Journal of Electromagnetic Engineering and ScienceThis study presents a high-efficiency dual-band rectifier with an extended frequency range. The proposed rectifier comprises a voltage doubler with shunt capacitors and an independent dual-band impedance control network (IDICN). The proposed IDICN, which
Yeonsoo Kim, Bitchan Kim, Juntaek Oh
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IEEE Access, 2021 The main objective of this work is to investigate the combinatory effects of both uniaxial magnetic and electrical anisotropies on the input impedance, resonant length and the mutual coupling between two dipoles printed on an anisotropic grounded ...
Mohamed Lamine Bouknia +8 more
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Mathematical models of spheroidal spiral-frame radiating structures
Физика волновых процессов и радиотехнические системы, 2023 The article considers mathematical models of two spheroidal spiral-frame emitters, built on the basis of a general approach involving the use of an integral representation electromagnetic field.
Dmitry P. Tabakov, Ruslan M. Valiullin
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Preparation of coated copper powder and its electromagnetic absorption property
Xi'an Gongcheng Daxue xuebao, 2023 In order to improve the application of copper powder in the field of microwave absorption, nickel coated copper powder and silver coated nickel coated copper composite powder were prepared by electroless plating method using copper powder as raw material.
LIU Yi +3 more
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Input impedance of a microstrip antenna with a chiral substrate based on left-handed spirals
The Journal of Engineering, 2019 This study proposes a mathematical model and a technique for the electrodynamic analysis of a microstrip antenna with a chiral substrate based on the left-handed spirals.
Vladimir Y. Abramov +4 more
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Resonant properties of an impedance monopole located on a perfectly conducting rectangular screen [PDF]
Радиофизика и электроника, 2020 Subject and Purpose. A resonant monopole of an electrical length 0.2 £ l / l £ 0.3 mounted on an infinite, perfectly conducting plane or on a rectangular, perfectly conducting screen is considered.
N.P. Yeliseyeva +2 more
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A Compact MIMO Antenna Design Using the Wideband Ground-Radiation Technique for 5G Terminals [PDF]
Journal of Electromagnetic Engineering and ScienceThis paper introduces a 4 × 4 multiple-input and multiple-output (MIMO) antenna application based on the conception of the characteristic mode of 5G terminals.
Rui Li, Longyue Qu, Hyeongdong Kim
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Frontiers in Energy Research, 2022 The impedance-based criterion has turned out to be a very effective tool for the stability analysis of the dual active bridge (DAB) converter with its input LC filter.
Fan Feng +4 more
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