• About
  • Policies
  • What is open access
  • Library
  • Contact
Advanced search
      View Item 
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Engineering
      • Department of Electrical and Electronics Engineering
      • View Item
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Engineering
      • Department of Electrical and Electronics Engineering
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      Circuit theory based analysis of CMUT arrays with very large number of cells

      Thumbnail
      View / Download
      163.5 Kb
      Author(s)
      Oguz, H. Kağan
      Atalar, Abdullah
      Köymen, Hayrettin
      Date
      2013
      Source Title
      2013 IEEE International Ultrasonics Symposium (IUS)
      Print ISSN
      1051-0117
      Publisher
      IEEE
      Pages
      291 - 294
      Language
      English
      Type
      Conference Paper
      Item Usage Stats
      171
      views
      137
      downloads
      Abstract
      We 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.
      Permalink
      http://hdl.handle.net/11693/27905
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/ULTSYM.2013.0075
      Collections
      • Department of Electrical and Electronics Engineering 3702
      Show full item record

      Browse

      All of BUIRCommunities & CollectionsTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartmentsThis CollectionTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartments

      My Account

      LoginRegister

      Statistics

      View Usage StatisticsView Google Analytics Statistics

      Bilkent University

      If you have trouble accessing this page and need to request an alternate format, contact the site administrator. Phone: (312) 290 1771
      © Bilkent University - Library IT

      Contact Us | Send Feedback | Off-Campus Access | Admin | Privacy