Simulating Capacitive Micromachined Ultrasonic Transducers (CMUTs) using Field II

David Bæk, Omer Oralkan, Mario Kupnik, Morten Willatzen, Butrus T. Khuri-Yakub, Jørgen Arendt Jensen

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    Abstract

    Field II has been a recognized simulation tool for piezoceramic medical transducer arrays for more than a decade. The program has its strength in doing fast computations of the spatial impulse response (SIR) from array elements by dividing the elements into smaller mathematical elements (ME)s from which it calculates the SIR responses. The program features predefined models for classical transducer geometries, but currently none for the fast advancing CMUTs. This work addresses the assumptions required for modeling CMUTs with Field II. It is shown that rectangular array elements, populated with cells, can be well approximated by neglecting the cells. Further, it is demonstrated that scaling of the SIR translates into better computational efficiency.
    Original languageEnglish
    Title of host publicationProceedings of the 2010 IEEE International Ultrasonics Symposium
    PublisherIEEE
    Publication date2010
    Pages439-442
    ISBN (Print)978-1-4577-0380-5, 978-1-4577-0382-9
    DOIs
    Publication statusPublished - 2010
    Event2010 IEEE International Ultrasonics Symposium - San Diego, United States
    Duration: 11 Oct 201014 Oct 2010
    http://ewh.ieee.org/conf/ius_2010/
    https://ieeexplore.ieee.org/xpl/conhome/5875051/proceeding

    Conference

    Conference2010 IEEE International Ultrasonics Symposium
    Country/TerritoryUnited States
    CitySan Diego
    Period11/10/201014/10/2010
    Internet address

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