An Analog beamformer for integrated high-frequency medical ultrasound imaging

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dc.authorid0000-0002-2357-4424
dc.authorid0000-0001-9198-8525
dc.contributor.authorGürün, Gökçeen_US
dc.contributor.authorZahorian, Jaimeen_US
dc.contributor.authorTekeş, Coşkunen_US
dc.contributor.authorKaraman, Mustafaen_US
dc.contributor.authorHasler, Paul E.en_US
dc.contributor.authorDeğertekin, Fahrettin Leventen_US
dc.date.accessioned2019-07-30T15:23:49Z
dc.date.available2019-07-30T15:23:49Z
dc.date.issued2011
dc.departmentIşık Üniversitesi, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.departmentIşık University, Faculty of Engineering, Department of Electrical-Electronics Engineeringen_US
dc.description.abstractWe designed and fabricated a dynamic receive beamforming integrated circuit (IC) in 0.35-mu m CMOS technology. This beamformer is suitable for integration with an ultrasound annular array for high-frequency (30-50 MHz) intravascular ultrasound (IVUS) imaging. The beamformer IC is capable of buffering, delaying and preamplification for 8 receive channels. We explored an analog delay cell based on a currentmode first-order all-pass filter, which is used as the basic building block to form an analog dynamic delay line. We also explored a bandwidth enhancement method on the delay cell that improved the overall bandwidth of the delay line by a factor of 6. Each delay cell consumes 2.1 mW of power and is capable of generating a tunable delay between 1.75 ns to 2.5 ns, enabling dynamic receive beamforming over a focal range from 1.4 mm to 2 mm. We successfully integrated the fabricated beamformer IC with an 8-element annular array. Our experimental test results demonstrated the desired buffering, preamplification and delaying capabilities of the beamformer.en_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationGürün, G., Zahorian, J., Tekeş, C., Karaman, M., Hasler, P. E. & Değertekin, F. L. (2011). An analog beamformer for integrated high-frequency medical ultrasound imaging. Paper presented at the 2011 IEEE Biomedical Circuits and Systems Conference (BioCAS), 65-68. doi:10.1109/BioCAS.2011.6107728en_US
dc.identifier.doi10.1109/BioCAS.2011.6107728
dc.identifier.endpage68
dc.identifier.isbn9781457714702
dc.identifier.isbn9781457714696
dc.identifier.isbn9781457714689
dc.identifier.issn2163-4025
dc.identifier.scopus2-s2.0-84855656911
dc.identifier.scopusqualityN/A
dc.identifier.startpage65
dc.identifier.urihttps://hdl.handle.net/11729/1660
dc.identifier.urihttp://dx.doi.org/10.1109/BioCAS.2011.6107728
dc.identifier.wosWOS:000395304400017
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakConference Proceedings Citation Index – Science (CPCI-S)en_US
dc.institutionauthorKaraman, Mustafaen_US
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherIEEEen_US
dc.relation.journal2011 IEEE Biomedical Circuits and Systems Conference (BioCAS)en_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectMatrix transduceren_US
dc.subjectArraysen_US
dc.subjectDelayen_US
dc.subjectBandwidthen_US
dc.subjectUltrasonic imagingen_US
dc.subjectMirrorsen_US
dc.subjectIntegrated circuitsen_US
dc.subjectDelay linesen_US
dc.subjectAll-pass filtersen_US
dc.subjectCMOS analogue integrated circuitsen_US
dc.subjectHigh-frequency effectsen_US
dc.subjectMedical image processingen_US
dc.subjectAnalog beamformeren_US
dc.subjectIntegrated high-frequency medical ultrasound imagingen_US
dc.subjectDynamic receive beamforming integrated circuiten_US
dc.subjectCMOS technologyen_US
dc.subjectUltrasound annular arrayen_US
dc.subjectBufferingen_US
dc.subjectPreamplificationen_US
dc.subjectReceive channelsen_US
dc.subjectAnalog delay cellen_US
dc.subjectCurrent-mode first-order all-pass filteren_US
dc.subjectAnalog dynamic delay lineen_US
dc.subject8-element annular arrayen_US
dc.subjectFrequency 30 MHz to 59 MHzen_US
dc.subjectSize 0.35 mumen_US
dc.subjectPower 2.1 mWen_US
dc.subjectTime 1.75 ns to 2.25 nsen_US
dc.titleAn Analog beamformer for integrated high-frequency medical ultrasound imagingen_US
dc.typeConference Objecten_US
dspace.entity.typePublication

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