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dc.contributor.authorOguz, H. Kağanen_US
dc.contributor.authorAtalar, Abdullahen_US
dc.contributor.authorKöymen, Hayrettinen_US
dc.coverage.spatialPrague, Czech Republicen_US
dc.date.accessioned2016-02-08T12:04:31Z
dc.date.available2016-02-08T12:04:31Z
dc.date.issued2013en_US
dc.identifier.issn1051-0117
dc.identifier.urihttp://hdl.handle.net/11693/27905
dc.descriptionDate of Conference: 21-25 July 2013en_US
dc.description.abstractWe have recently developed a circuit theory based method to analyze large CMUT arrays and shown that mutual acoustic interactions significantly influence the transducer performance. We connect each cell in the array to a radiation impedance matrix that contains the mutual radiation impedance between every pair of cells, in addition to their self radiation impedances. However, efficient analysis of very large arrays is challenging, which may become computationally cumbersome. To partition the problem, we electrically drive a single element in the array and keep the rest undriven but biased and with their electrical ports terminated with a load. The radiation impedance matrix can be partitioned and rearranged to represent these loads in a reduced form. In this way, only the driven element can be simulated by coupling its cells through this reduced impedance matrix. This method considerably reduces the number of cells and the size of the original radiation impedance matrix at the expense of calculating the inverse of a large complex symmetric matrix. © 2013 IEEE.en_US
dc.language.isoEnglishen_US
dc.source.title2013 IEEE International Ultrasonics Symposium (IUS)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/ULTSYM.2013.0075en_US
dc.titleCircuit theory based analysis of CMUT arrays with very large number of cellsen_US
dc.typeConference Paperen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.citation.spage291en_US
dc.citation.epage294en_US
dc.identifier.doi10.1109/ULTSYM.2013.0075en_US
dc.publisherIEEEen_US
dc.contributor.bilkentauthorAtalar, Abdullah
dc.contributor.bilkentauthorKöymen, Hayrettin


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