Aydoğdu, ElifÖzgürlük, A.Atalar, AbdullahKöymen, Hayrettin2016-02-082016-02-082014-09http://hdl.handle.net/11693/27763Date of Conference: 3-6 Sept. 2014Conference name: 2014 IEEE International Ultrasonics SymposiumThis study focuses on modeling collapsed modeoperation of CMUT arrays, and obtaining a small signal lumped element model for collapsed mode operation. Having the large signal model for single CMUT from previous studies, the mutual radiation impedance is presented for the collapsed mode, and a large signal model for a CMUT array is obtained for simulating the operation in both uncollapsed and collapsed modes. For faster computation, a small signal model for a CMUT cell is derived by linearizing the collapsed mode operation at a given bias point, and the computation time is reduced significantly. Using this model we are able to simulate a large array of collapsed CMUT cells. © 2014 IEEE.EnglishAcousticsUltrasonicsBias pointsComputation timeLarge arraysLarge signal modelingLumped element modelMode operationRadiation impedanceSmall signal modelHeterojunction bipolar transistorsConference Paper10.1109/ULTSYM.2014.0076