DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click HERE
to register or log in.
Acoustically Coupled Resonators: Filters and Pressure Transducers,
CENTRE NATIONAL D'ETUDES DES TELECOMMUNICATIONS LANNION (FRANCE)
Pagination or Media Count:
Acoustical radiation is of particular intensity for resonators having large normal components of displacement. This can be used as a simple and efficient way to transfer energy between two resonators in order to constitute a filter structure. A one dimensional modelization of gas coupled extensional composite resonators is described. This model indicates a simple dependence of the response on several parameters of the gas gap. A theoretical investigation of vibrational and electrical behaviour of composite resonators and of acoustically coupled biresonator filters made by a bi or tridimensional finite element analysis is reported. This analysis was performed for two different types of structures one of cylindrical geometry, the other of paralellipipedic geometry.
APPROVED FOR PUBLIC RELEASE