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Adaptive Impedance Matching System
2010 International Forum on Information Technology and Applications, 2010In order to resolve the real-time, fast and stable matching problems as to the dynamic load of microwave plasma, including O2, N2, CF4, NF3, N2H2, etc, through the introduction of six-port test theory and impedance matching theory, the authors put forward a new method called automatic impedance match, which calculated reflectance using the FDTD ...
Yang Li, Du Cheng
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2012
A fundamental skill required in shock wave physics [1–4] is to determine the P-u states behind shock waves after they have reflected from a material boundary or intersect another wave. The best way to understand the resulting shock wave states is graphically using wave propagation x-t graphs combined with P-u graphs.
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A fundamental skill required in shock wave physics [1–4] is to determine the P-u states behind shock waves after they have reflected from a material boundary or intersect another wave. The best way to understand the resulting shock wave states is graphically using wave propagation x-t graphs combined with P-u graphs.
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IEEE transactions on microwave theory and techniques, 2019
In this article, the implementation of a machine learning (ML) strategy based on neural networks for the real-time range-adaptive automatic impedance matching of wireless power transfer (WPT) applications is discussed.
Soyeon Jeong +2 more
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In this article, the implementation of a machine learning (ML) strategy based on neural networks for the real-time range-adaptive automatic impedance matching of wireless power transfer (WPT) applications is discussed.
Soyeon Jeong +2 more
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Impedance matching at arterial bifurcations
Journal of Biomechanics, 1993Reflections of pulse waves will occur in arterial bifurcations unless the impedance is matched continuously through changing geometric and elastic properties. A theoretical model is presented which minimizes pulse wave reflection through bifurcations.
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Impedance Matching in RFID Tags: to Which Impedance to Match?
2006 IEEE Antennas and Propagation Society International Symposium, 2006This paper presents an analysis of impedance matching in passive radio frequency identification (RFID) tags. RFID chip impedance varies with frequency and with the power absorbed by the chip. The variation of this impedance with power can drastically affect the performance of the chip. We show how the impedance variation of the chip front makes the tag
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Impedance transformation and matching
1991Starting with the expression derived in Chapter 2 for the input impedance of a length of terminated transmission line, it is shown that the transmission line acts as an impedance transformer of complex ratio. The Smith chart, a form of circle diagram which is a graphical aid for solving many transmission line and waveguide impedance calculations, is ...
F. A. Benson, T. M. Benson
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Acoustic impedance matching device
The Journal of the Acoustical Society of America, 1982A impedance matching window for an ultrasound transducer comprises a periodic array of stepped structures. Each stepped structure comprises a plurality of parallel matching strips disposed side-by-side on an active surface of a piezoelectric ceramic.
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2018
This chapter examines in detail the common broadband impedance matching subcircuits, and detailed derivations of the design equations are provided. The discussion starts with an analysis of the Bode–Fano inequalities that impose restrictions on the gain and bandwidth of broadband impedance matching subcircuits.
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This chapter examines in detail the common broadband impedance matching subcircuits, and detailed derivations of the design equations are provided. The discussion starts with an analysis of the Bode–Fano inequalities that impose restrictions on the gain and bandwidth of broadband impedance matching subcircuits.
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