Dimension-Scaling of Microcantilevers Resonators

Narducci, Margarita; Figueras, E.; Gràcia, I.; Fonseca, L.; Santander, J.; Cané, C.

doi:10.1109/sced.2007.384028

Cited by 3 publications

(6 citation statements)

References 9 publications

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“…For an utilization as a gas sensor, it means it is better that l2/l ratio be in the range in which the frequency is minimum, because the additional mass resulted from the gas adsorption has the greatest influence on the fundamental eigenfrequency. It is an observation that appears also to Narducci M et al, [9], but only for homogeneous microbeams. We think that figure 5 from this paper better illustrates the observation, which remains valid for the nonhomogeneous microbeams, too.…”

Section: Influence Of Structure's Geometry Parameters On the Values Osupporting

confidence: 55%

“…Thus it reaches the expression of the spring constant established in [9,10], but using a simpler algorithm. In addition, the method can be extended also to non-homogeneous microbeams on certain parts, as it is proposed in this work.…”

Section: Analytical Computation Modelmentioning

confidence: 93%

“…The under study structure, paddle-shaped rectangular microbeam and the geometrical parameters are represented in figure 1. In [9], it is used the method of integrating the differential equation of the deformed elastic line with the imposition of boundary and the continuity conditions for calculating the static displacement in the relation of the fundamental frequency determination of the homogeneous microbeam with step-variable widths (as in figure 1); in [10], the same result is achieved using the Castigliano method [11,12]. The static displacement is:…”

Section: Analytical Computation Modelmentioning

confidence: 99%

“…• proposing an analytical calculation method for such microbeams, a less laborious method of calculation than those presented in other works [9,10]. The calculation formulas proposed by customizing lead to the relationships established in literature for homogeneous microbeams; • the performed study, useful in pre-sizing of such structures, is a continuation of the authors' preoccupations regarding the calculation of microbeams layered along their entire length [7,8]; • the model of calculation is validated through numerical analysis with FEM, and experimentally, by LDV method, using MSA-500 from Polytec.…”

Section: Introductionmentioning

confidence: 99%

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Modeling, simulation and experimental research for MEMS cantilevers of complex geometry

et al. 2019

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The fundamental resonant frequencies for MEMS cantilevers of complex geometry (paddle-shaped rectangular microbeam, homogeneous on a part of length and nonhomogeneous, layered structure to the wider part of the beam) are calculated. A method of analytical calculation using the Mohr-Maxwell theory is proposed for homogeneous microcantilevers, which is then adapted for non-homogeneous structures. The analytical model has been validated by numerical simulation using finite element method (FEM). The experimental validation has been made using laser-Doppler vibrometry (LDV) by scanning with the Polytec MSA-500 system.

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Section: Influence Of Structure's Geometry Parameters On the Values Osupporting

confidence: 55%

Section: Analytical Computation Modelmentioning

confidence: 93%

Section: Analytical Computation Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modeling, simulation and experimental research for MEMS cantilevers of complex geometry

et al. 2019

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“…26 On the other hand, they are unsuitable for handling multiple performance figures or complex mutual interactions between the parameters. 28,29 A more generic approach involves antenna redesign using approximation-based models, which are useful for solving problems characterized by multiple operating conditions. 30 Inverse models can be constructed from a set of predefined reference designs.…”

Section: Introductionmentioning

confidence: 99%

Rapid redesign of multiband antennas with respect to operating conditions and material parameters of substrate

Koziel

Bekasiewicz

2020

Int J Numerical Modelling

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This work addresses geometry parameter scaling of multiband antennas for Internet of Things applications. The presented approach is comprehensive and permits redesign of the structure with respect to both the operating frequencies and material parameters of the dielectric substrate. A two-step procedure is developed with the initial design obtained from an inverse surrogate model constructed using a set of appropriately prepared reference points and the final design identified through an iterative correction procedure. The latter is necessary in order to account for limited accuracy of the surrogate. The proposed approach is validated using a dual-band microstrip patch antenna scaled over wide ranges of operating frequencies (1.5-2.5 GHz for the lower band and 5.0-6.0 GHz for the upper band), substrate thickness (0.7-1.5 mm), and substrate permittivity (2.5-3.5). The redesign cost corresponds to only up to three electromagnetic simulations of the antenna at hand. Reliability of the process is confirmed through experimental validation of the fabricated antenna prototypes.

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