An Adaptive Element-Level Impedance-Matched ASIC With Improved Acoustic Reflectivity for Medical Ultrasound Imaging
This paper presents an active impedance matching scheme that tries to optimize electrical power transfer and acoustic reflectivity in ultrasound transducers. Leveraging negative capacitance-based impedance matching would potentially improve the bandwidth and electrical power transfer while minimizin...
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| Veröffentlicht in: | IEEE transactions on biomedical circuits and systems 2022-08, Vol.16 (4), p.492-501 |
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| container_title | IEEE transactions on biomedical circuits and systems |
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| creator | Rezvanitabar, Ahmad Kilinc, M. Sait Tekes, Coskun Arkan, Evren F. Ghovanloo, Maysam Degertekin, F. Levent |
| description | This paper presents an active impedance matching scheme that tries to optimize electrical power transfer and acoustic reflectivity in ultrasound transducers. Leveraging negative capacitance-based impedance matching would potentially improve the bandwidth and electrical power transfer while minimizing acoustic reflection of transducer elements and improve uniformity while reducing acoustic crosstalk of transducer arrays. A 16-element transceiver front-end is designed which employs an element-level active capacitive impedance cancellation scheme using an element-level negative impedance converter. The ASIC fabricated in 180-nm HVBCD technology provides high-voltage pulses up to 60 V consuming 3.6 mW and occupying 2.5 mm 2 . The front-end ASIC is used with a 1-D capacitive micromachined ultrasonic transducer (CMUT) array and its acoustical reflectivity reduction and imaging capabilities have successfully been demonstrated through pulse-echo measurements and acoustic imaging experiments. |
| doi_str_mv | 10.1109/TBCAS.2022.3181157 |
| format | Article |
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Sait ; Tekes, Coskun ; Arkan, Evren F. ; Ghovanloo, Maysam ; Degertekin, F. Levent</creator><creatorcontrib>Rezvanitabar, Ahmad ; Kilinc, M. Sait ; Tekes, Coskun ; Arkan, Evren F. ; Ghovanloo, Maysam ; Degertekin, F. Levent</creatorcontrib><description>This paper presents an active impedance matching scheme that tries to optimize electrical power transfer and acoustic reflectivity in ultrasound transducers. Leveraging negative capacitance-based impedance matching would potentially improve the bandwidth and electrical power transfer while minimizing acoustic reflection of transducer elements and improve uniformity while reducing acoustic crosstalk of transducer arrays. A 16-element transceiver front-end is designed which employs an element-level active capacitive impedance cancellation scheme using an element-level negative impedance converter. The ASIC fabricated in 180-nm HVBCD technology provides high-voltage pulses up to 60 V consuming 3.6 mW and occupying 2.5 mm 2 . 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(IEEE) 2022</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c450t-b36707548c8b13c14607456b3cda040ab15b6b3bd99234e42f785fb67161df943</citedby><cites>FETCH-LOGICAL-c450t-b36707548c8b13c14607456b3cda040ab15b6b3bd99234e42f785fb67161df943</cites><orcidid>0000-0001-7811-1999 ; 0000-0002-2357-4424 ; 0000-0001-9502-3704 ; 0000-0002-0233-8238 ; 0000-0002-3907-9890 ; 0000-0001-9198-8525</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9793568$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>230,314,777,781,793,882,27906,27907,54740</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/9793568$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35687616$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Rezvanitabar, Ahmad</creatorcontrib><creatorcontrib>Kilinc, M. Sait</creatorcontrib><creatorcontrib>Tekes, Coskun</creatorcontrib><creatorcontrib>Arkan, Evren F.</creatorcontrib><creatorcontrib>Ghovanloo, Maysam</creatorcontrib><creatorcontrib>Degertekin, F. Levent</creatorcontrib><title>An Adaptive Element-Level Impedance-Matched ASIC With Improved Acoustic Reflectivity for Medical Ultrasound Imaging</title><title>IEEE transactions on biomedical circuits and systems</title><addtitle>TBCAS</addtitle><addtitle>IEEE Trans Biomed Circuits Syst</addtitle><description>This paper presents an active impedance matching scheme that tries to optimize electrical power transfer and acoustic reflectivity in ultrasound transducers. Leveraging negative capacitance-based impedance matching would potentially improve the bandwidth and electrical power transfer while minimizing acoustic reflection of transducer elements and improve uniformity while reducing acoustic crosstalk of transducer arrays. A 16-element transceiver front-end is designed which employs an element-level active capacitive impedance cancellation scheme using an element-level negative impedance converter. The ASIC fabricated in 180-nm HVBCD technology provides high-voltage pulses up to 60 V consuming 3.6 mW and occupying 2.5 mm 2 . The front-end ASIC is used with a 1-D capacitive micromachined ultrasonic transducer (CMUT) array and its acoustical reflectivity reduction and imaging capabilities have successfully been demonstrated through pulse-echo measurements and acoustic imaging experiments.</description><subject>Acidity</subject><subject>Acoustic imaging</subject><subject>Acoustic impedance</subject><subject>Acoustic reflectivity</subject><subject>Acoustics</subject><subject>array uniformity</subject><subject>Arrays</subject><subject>ASIC</subject><subject>Bandwidth</subject><subject>Capacitance</subject><subject>capacitive cancellation</subject><subject>capacitive micromachined ultrasonic transducer (CMUT)</subject><subject>Capacitors</subject><subject>crosstalk</subject><subject>Electric power</subject><subject>HV pulser</subject><subject>Impedance</subject><subject>Impedance matching</subject><subject>Integrated circuit modeling</subject><subject>Micromachining</subject><subject>negative capacitance (NC)</subject><subject>Power transfer</subject><subject>Reflectance</subject><subject>Reflectivity</subject><subject>Sodium channels</subject><subject>Transducers</subject><subject>Ultrasound</subject><subject>ultrasound transceiver (US-TRX)</subject><subject>Voltage pulses</subject><issn>1932-4545</issn><issn>1940-9990</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkV1rFDEYhYMottb-AQUZ8Mab2eY7kxthXKoubCnYll6GTOad3ZT5WJOZhf57M-66qFf5OM97eA8HoXcELwjB-ur-y7K8W1BM6YKRghChXqBzojnOtdb45XxnNOeCizP0JsYnjIWkmr5GZ0zIQkkiz1Es-6ys7W70e8iuW-igH_M17KHNVt0Oats7yG_s6LZQZ-Xdapk9-nE7a2HYz19umOLoXfYDmhZcsvHjc9YMIbuB2jvbZg_tGGwcpr5OU3bj-81b9KqxbYTL43mBHr5e3y-_5-vbb6tluc4dF3jMKyYVVoIXrqgIc4RLrLiQFXO1xRzbiogqvapaa8o4cNqoQjSVVESSutGcXaDPB9_dVHVQuxQt2Nbsgu9seDaD9eZfpfdbsxn2RitCBSmSwaejQRh-ThBH0_nooG1tDym2oVKJtBTFKqEf_0Ofhin0KZ6hirJCa65nih4oF4YYAzSnZQg2c6fmd6dm7tQcO01DH_6OcRr5U2IC3h8ADwAnWSs9E-wXwIOl-g</recordid><startdate>20220801</startdate><enddate>20220801</enddate><creator>Rezvanitabar, Ahmad</creator><creator>Kilinc, M. 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Levent</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c450t-b36707548c8b13c14607456b3cda040ab15b6b3bd99234e42f785fb67161df943</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Acidity</topic><topic>Acoustic imaging</topic><topic>Acoustic impedance</topic><topic>Acoustic reflectivity</topic><topic>Acoustics</topic><topic>array uniformity</topic><topic>Arrays</topic><topic>ASIC</topic><topic>Bandwidth</topic><topic>Capacitance</topic><topic>capacitive cancellation</topic><topic>capacitive micromachined ultrasonic transducer (CMUT)</topic><topic>Capacitors</topic><topic>crosstalk</topic><topic>Electric power</topic><topic>HV pulser</topic><topic>Impedance</topic><topic>Impedance matching</topic><topic>Integrated circuit modeling</topic><topic>Micromachining</topic><topic>negative capacitance (NC)</topic><topic>Power transfer</topic><topic>Reflectance</topic><topic>Reflectivity</topic><topic>Sodium channels</topic><topic>Transducers</topic><topic>Ultrasound</topic><topic>ultrasound transceiver (US-TRX)</topic><topic>Voltage pulses</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rezvanitabar, Ahmad</creatorcontrib><creatorcontrib>Kilinc, M. 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| identifier | ISSN: 1932-4545 |
| ispartof | IEEE transactions on biomedical circuits and systems, 2022-08, Vol.16 (4), p.492-501 |
| issn | 1932-4545 1940-9990 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Acidity Acoustic imaging Acoustic impedance Acoustic reflectivity Acoustics array uniformity Arrays ASIC Bandwidth Capacitance capacitive cancellation capacitive micromachined ultrasonic transducer (CMUT) Capacitors crosstalk Electric power HV pulser Impedance Impedance matching Integrated circuit modeling Micromachining negative capacitance (NC) Power transfer Reflectance Reflectivity Sodium channels Transducers Ultrasound ultrasound transceiver (US-TRX) Voltage pulses |
| title | An Adaptive Element-Level Impedance-Matched ASIC With Improved Acoustic Reflectivity for Medical Ultrasound Imaging |
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