Tunable wideband bandstop acoustic filter based on two-dimensional multiphysical phenomena periodic systems

Copyright (2011) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. along with the following message: The following article appeared in Journal of Applied Physics , Volume 110, Issue 1 and may be found at http://scitation.aip.org/content/aip/journal/jap/110/1/10.1063/1.3599886. Authors own version of final article on e-print serversThe physical properties of a periodic distribution of absorbent resonators is used in this work to design a tunable wideband bandstop acoustic filter. Analytical and numerical simulations as well as experimental validations show that the control of the resonances and the absorption of the scatterers along with their periodic arrangement in air introduce high technological possibilities to control noise. Sound manipulation is perhaps the most obvious application of the structures presented in this work. We apply this methodology to develop a device as an alternative to the conventional acoustic barriers with several properties from the acoustical point of view but also with additional esthetic and constructive characteristics. © 2011 American Institute of Physics.This work was supported by MEC (Spanish Government) and FEDER funds, under Grant No. MAT2009-09438.Romero García, V.; Sánchez Pérez, JV.; García-Raffi, LM. (2011). Tunable wideband bandstop acoustic filter based on two-dimensional multiphysical phenomena periodic systems. Journal of Applied Physics. 110(1):149041-149049. doi:10.1063/1.3599886S149041149049110