Results 11 to 20 of about 16,196 (251)
Modeling and impedance matching for radio frequency driven plasma lamp considering cold and hot states. [PDF]
PLoS ONE, 2018 A new dual-state impedance matching scheme for a microwave driven plasma lamp using a solid-state power amplifier (SSPA) is presented. The impedance of the plasma lamp depends on the amount of input radio frequency (RF) energy, and therefore has very ...
Wonshil Kang, Hyunchul Ku
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Boosting electromagnetic wave absorption of Ti3AlC2 by improving effective electrical conductivity
Journal of Advanced Ceramics, 2023 Electromagnetic wave-absorbing (EMA) materials at high temperatures are limited by poor conduction loss (Lc). However, adding conductors simultaneously increases the conduction loss and interfacial polarization loss, leading to a conflict between ...
Kai-Yu Guo, Lin Chen, Guan-Jun Yang
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Electrical excitation and detection of magnetic dynamics with impedance matching [PDF]
Applied Physics Letters, 2012 Motivated by the prospects of increased measurement bandwidth, improved signal to noise ratio, and access to the full complex magnetic susceptibility we develop a technique to extract microwave voltages from our high resistance (∼10kΩ) (Ga,Mn)As microbars. We drive magnetization precession with microwave frequency current, using a mechanism that relies
Fang, D. +5 more
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Memristive Bio-Impedance Modeling of Fruits and Vegetables
IEEE Access, 2021 Recent works show that the plants can exhibit nonlinear memristive behavior when excited with low-frequency signals. However, in the literature, only linear bio-impedance models are extensively considered to model the electrical properties of biological ...
Doaa K. Abdelrahman +4 more
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Sensors, 2017 The input electrical impedance behaves as a capacitive when a piezoelectric transducer is excited near its resonance frequency. In order to increase the energy transmission efficiency, a series or parallel inductor should be used to compensate the ...
Shuyu Lin, Jie Xu
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Three-Dimensional Package Design for Electro-Absorption Modulation Laser Array
IEEE Photonics Journal, 2016 We report a new 3-D package design technique in this paper. Based on this technique, a 3-D RF impedance matching circuit used in the packaging of electroabsorption modulation laser (EML) array is achieved, which has the characteristics of low electrical ...
Zhike Zhang +7 more
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Micromachines, 2022 The study of impedance matching between a transducer and its working medium is an important part of acoustic transducer design. The traditional quarter wavelength matching (Q-matching) scheme is not suitable for broadband capacitive micromachined ...
Bizhen Gao +9 more
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Sensors, 2020 As a piezoelectric material, (Bi,Sc)O3-(Pb,Ti)O3 ceramics have been tested and analyzed for sensors and energy harvester applications owing to their relatively high Curie temperature and high piezoelectric coefficient. In this work, we prepared optimized
Bo Su Kim +4 more
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Sensors, 2021 In this paper, a new sensor is developed to estimate the dielectric constant of Cyclo Olefin Polymer (COP) film utilizable for 5G mobile phones’ multi-layered back-cover. It is featured by the electrical characterization of the thin layer of the COP film
Yejune Seo +5 more
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Sensors, 2021 The development of biomedical devices benefits patients by offering real-time healthcare. In particular, pacemakers have gained a great deal of attention because they offer opportunities for monitoring the patient’s vitals and biological statics in real ...
Ilkyu Kim +3 more
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