Results 241 to 250 of about 30,947 (290)

Coupling coefficient of resonators—An intuitive way of its understanding

Electronics and Communications in Japan (Part II: Electronics), 2007
AbstractA new representation of the coupling coefficient of resonators has been obtained by the authors using the coupled mode theory. In this expression, the coupling coefficient is given by an overlap integral of the electric field and the magnetic field. This expression is extremely useful for explanation of the physical meaning of coupling.
Ikuo Awai, Yangjun Zhang
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The effective electromechanical coupling coefficient of piezoelectric thin-film resonators

Applied Physics Letters, 2005
The input electric impedance Zin for a three-layer thin-film bulk acoustic wave resonator is derived by transfer matrix method to describe the resonator behavior. Based on the impedance spectra, the effective coupling coefficient keff2 of a thin-film resonator can be evaluated with respect to the resonator structure and thin-film properties.
Qingming Chen, Qing-Ming Wang
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Coupling Coefficient of Irregular Microstrip Resonators

Radiophysics and Quantum Electronics, 2000
We prove the equivalence of the resonance and energetic definitions of the coupling coefficient in the case of irregular microstrip resonators. Formulas for calculation of the coupling coefficient of microstrip resonators with stepped width of the strip conductor are derived.
B. A. Belyaev, M. M. Titov, V. V. Tyurnev   +2 more
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Coupling coefficients of resonators in microstrip model of superlattice

2004 14th International Crimean Conference "Microwave and Telecommunication Technology" (IEEE Cat. No.04EX843), 2004
The frequency-dependent coupling coefficients of resonators in the microstrip model of a superlattice were investigated. These coefficients near to the natural frequencies of the structure coincide with coefficients that are calculated by known methods. The calculation corresponds with experimental results obtained for microstrip structures.
B.A. Belyaev, A.M. Serzhantov
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Characterization of electromechanical coupling coefficients of piezoelectric films using composite resonators

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1999
By analyzing the resonance frequency spectrum of a composite resonator consisting of a piezoelectric ceramic film deposited on a substrate plate, the thickness extensional mode electromechanical coupling coefficient of the film, k(t)(2), can be directly calculated from the effective coupling factor values, k(eff )(2), for two special modes of the ...
Z, Wang, Y, Zhang, J N, Cheeke
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Investigation of modified Lamé mode resonator with high coupling coefficient

Journal of Applied Physics, 2020
This paper presents a modified Lamé-mode resonator (MLMR) with a high, effective electromechanical coupling coefficient (Keff2). With trapezoidal grooves introduced by etching the superficial piezoelectric material between interdigitated electrodes (IDTs), the MLMR can remarkably improve Keff2, eliminate spurious modes, and reduce the internal stress ...
Jie Zhou, Jieyu Liu, Yang Zou, Yao Cai, Yi Zhang, Qinwen Xu, Xin Tong, Alexander Tovstopyat, Shishang Guo, Chengliang Sun   +9 more
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Simple computation of the coupling coefficient for loop-coupled resonant cavities

Microwave and Optical Technology Letters, 2000
A simple procedure is described to compute the coupling coefficient of a resonant cavity that contains a dielectric resonator. The resonant frequency and the unloaded Q are computed from the modal solution without the presence of the loop. An equivalent circuit is obtained for the unloaded cavity, and the loop coupling is represented by a series ...
Kodanda R. Engala, Ahmed A. Kishk, Darko Kajfez   +2 more
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The calculation methods of coupling coefficient between resonators

ISAPE2012, 2012
Three calculation formulas are derived based on the definition of coupling coefficient by three methods, namely, adding electric and magnetic wall method, setting the imaginary part of resistance to zero and S parameter method. The hairpin coupling microstrip resonator module is established and calculation methods is given by using microwave simulation
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Features of the coupling coefficients of microstrip irregular quarter-wavelength resonators

2016 13th International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE), 2016
In the present work on the base of modified energy approach a behavior of the frequency-dependent coupling coefficient of pair microstrip stepped-impedance quarter-wavelength resonators was investigated. It is revealed that at a certain gap between the resonators the total coefficient of coupling becomes zero due to mutual compensation of coefficients ...
I.V. Govorun, A.A. Leksikov, A.M. Serzhantov   +2 more
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General expressions and physical origin of the coupling coefficient of arbitrary tuned coupled electromagnetic resonators

Journal of Applied Physics, 2015
The theory and operation of various devices and systems, such as wireless power transfer via magnetic resonant coupling, magneto-inductive wave devices, magnetic resonance spectroscopy probes, and metamaterials can rely on coupled tuned resonators.
Sameh Y. Elnaggar, Richard J. Tervo, Saba M. Mattar   +2 more
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