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Nonlinear actuation model for lateral electrostatically-actuated DC-contact RF MEMS series switches.

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hdl:2117/1779

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Lázaro Guillén, Antoni
Girbau Sala, David
Pradell i Cara, LluísMés informacióMés informacióMés informació
Nebot Serra, Àlvar
Document typeArticle
Defense date2007-06-01
PublisherJOHN WILEY & SONS INC
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
In this work, a nonlinear model to predict actuation characteristics in lateral electrostatically-actuated DC-contact MEMS switches is proposed. In this case a parallel-plate approximation cannot be applied. The model is based on the equilibrium equation for an elastic beam. It is demonstrated that the contribution of fringing fields is essential. The model relies on finite-difference discretization of the structures, applying boundary conditions and is solved with a Gauss- Seidel relaxation iteration scheme. Its usefulness is demonstrated in a series MEMS switch with lateral interdigital electrostatic actuation.
CitationLazaro, A.; Girbau, D.; Pradell, L., Nebot, A. Nonlinear actuation model for lateral electrostatically-actuated DC-contact RF MEMS series switches. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2007, vol. 49, núm. 6, p. 1238-1241. 
URIhttp://hdl.handle.net/2117/1779
ISSN0895-2477
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