Results 271 to 280 of about 6,921,664 (320)
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Tunable impedance matching network
2007 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, 2007This work presents a RF tunable impedance matching circuit. It uses a quarter-wavelength (lambda/4) transmission line loaded by a combination of switches, capacitors and inductors. With MEMS-based switches and inductors, the simulation results show that this circuit is capable of correction load reflection coefficients of up 0.5 to better than 0.38 ...
Karolinne Brito, Robson Nunes de Lima
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IEEE Journal of Emerging and Selected Topics in Industrial Electronics, 2022
This article proposes a new design method of impedance matching networks for wireless power transfer (WPT) systems. In WPT systems, the input impedance of resonator varies over a wide range rather than having a fixed value due to coupling variation.
Euihoon Chung +3 more
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This article proposes a new design method of impedance matching networks for wireless power transfer (WPT) systems. In WPT systems, the input impedance of resonator varies over a wide range rather than having a fixed value due to coupling variation.
Euihoon Chung +3 more
semanticscholar +1 more source
Impedance Network for an Automatic Impedance Matching System
2007 Asia-Pacific Microwave Conference, 2007This work presents a RF tunable impedance matching network. It uses a quarter-wavelength (lambda /4) transmission line loaded by a combination of switches, capacitors and inductors. With MEMS-based switches and inductors, the simulation results show that this circuit is capable of correction load reflection coefficients of up 0.5 to better than 0.3 ...
Karolinne Brito de Brito +1 more
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IEEE transactions on microwave theory and techniques, 2022
This article proposes an ultrawideband rectifier with high efficiency at wide input power range. It consists of a wideband impedance compression network (WICN) and two subrectifiers.
Shaofei Bo, Jun-hui Ou, Xiu Yin Zhang
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This article proposes an ultrawideband rectifier with high efficiency at wide input power range. It consists of a wideband impedance compression network (WICN) and two subrectifiers.
Shaofei Bo, Jun-hui Ou, Xiu Yin Zhang
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Network-assisted procedure for impedance dissemination
Proceedings of the 21st IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.04CH37510), 2004A technique for disseminating impedance measurement units from National Metrology Institutes to secondary laboratories is proposed in this paper. Such a technique takes advantage of a client-server application over the Internet and employs a commercially available impedance calibrator with computer-interfacing capabilities.
CARULLO, Alessio +2 more
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IEEE Sensors Journal, 2021
Image reconstruction of Electrical Impedance Tomography (EIT) is a highly nonlinear ill-posed inverse problem, which is sensitive to the measurement noise and model errors.
Yang Wu +7 more
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Image reconstruction of Electrical Impedance Tomography (EIT) is a highly nonlinear ill-posed inverse problem, which is sensitive to the measurement noise and model errors.
Yang Wu +7 more
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On The Equivalent Impedance of Two-Impedance Self-Similar Ladder Networks
IEEE Transactions on Circuits and Systems II: Express Briefs, 2021Recurrent ladder network models are encountered in the analysis of many natural systems including wave propagation in transmission lines, porous electrode/electrolyte interfaces and viscoelastic (bio)materials. Here we re-visit the equivalent impedance of self-similar ladder networks composed of two arbitrary impedances recursively arranged, with the ...
A. S. Elwakil +2 more
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A New Adaptive Broadband Thyristor-Controlled Impedance Matching Network
IEEE transactions on industrial electronics (1982. Print), 2022In this article, we present an adaptive broadband thyristor-controlled impedance matching network (TCIMN) for increasing power utilization from a power amplifier to the loads.
Lei Wang +5 more
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Seismic Impedance Inversion Using Conditional Generative Adversarial Network
IEEE Geoscience and Remote Sensing Letters, 2021Deep-learning methods, such as convolutional neural networks (CNNs), have been successfully applied to seismic impedance inversion in recent years. Compared with traditional geophysical inversion, deep-learning inversion can give inversion results with ...
Delin Meng +3 more
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Network Impedance Transformations
2013This chapter discusses impedance matching. The author elaborates the following topics : L-type matching circuits; T-type matching circuits; and balanced L- or balanced T-type circuits.
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