Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/601571
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dc.contributor.authorDimitra Psychogiouen_US
dc.contributor.authorRoberto Gómez-Garcíaen_US
dc.contributor.authorDimitrios Peroulisen_US
dc.date.accessioned2020-05-20T08:56:54Z-
dc.date.available2020-05-20T08:56:54Z-
dc.date.issued2016en_US
dc.identifier.issn1549-7747en_US
dc.identifier.issn1558-3791en_US
dc.identifier.other10.1109/TCSII.2015.2505078en_US
dc.identifier.urihttp://localhost/handle/Hannan/138151en_US
dc.identifier.urihttp://localhost/handle/Hannan/601571-
dc.description.abstractThis brief focuses on the radio frequency (RF) design of novel high-quality-factor (Q) reflective-type bandstop filters (BSFs) with narrow bandwidth (BW), small physical size, and large stopband attenuation levels. They are realized by merging acoustic-wave-lumped-element resonators (AWLRs) and lumped-element impedance inverters in a single filter architecture. In this manner, deep stopband notches that correspond to resonators with effective quality factors (Q<sub>seff</sub>) on the order of 1000 are created. Furthermore, the obtained rejection bands exhibit fractional BWs that are no longer restricted by the electromechanical coupling coefficient k2t of the constituent acoustic wave (AW) resonators as opposed to the traditional all-AW filters. Experimental prototypes of first and third-order frequency-static BSFs were built and tested at 418 MHz to validate the proposed concept. Measured stopbands with 3-dB BWs from 0.2 to 0.5 MHz, maximum stopband attenuation in the range of 15-43 dB, and passband insertion loss between 0.37 and 1.6 dB are reported. Moreover, an electronically switchable BSF with dynamic notch allocation is presented as a practical demonstrator device for switchable RF-interference suppression. A design methodology that relates to coupled-resonator filter formalism is also addressed to facilitate the systematic theoretical synthesis of the engineered AWLR-based reflective-type BSFs.en_US
dc.publisherIEEEen_US
dc.relation.haspart7346441.pdfen_US
dc.subjectnotch filter|Acoustic wave (AW) filter|surface acoustic wave (SAW) filter|bandstop filter (BSF)|narrowband filter|high-quality-factor (Q) filter|tunable filteren_US
dc.titleHigh- Q Bandstop Filters Exploiting Acoustic-Wave-Lumped-Element Resonators (AWLRs)en_US
dc.typeArticleen_US
dc.journal.volume63en_US
dc.journal.issue1en_US
dc.journal.titleIEEE Transactions on Circuits and Systems II: Express Briefsen_US
Appears in Collections:2016

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dc.contributor.authorDimitra Psychogiouen_US
dc.contributor.authorRoberto G&#x00F3;mez-Garc&#x00ED;aen_US
dc.contributor.authorDimitrios Peroulisen_US
dc.date.accessioned2020-05-20T08:56:54Z-
dc.date.available2020-05-20T08:56:54Z-
dc.date.issued2016en_US
dc.identifier.issn1549-7747en_US
dc.identifier.issn1558-3791en_US
dc.identifier.other10.1109/TCSII.2015.2505078en_US
dc.identifier.urihttp://localhost/handle/Hannan/138151en_US
dc.identifier.urihttp://localhost/handle/Hannan/601571-
dc.description.abstractThis brief focuses on the radio frequency (RF) design of novel high-quality-factor (Q) reflective-type bandstop filters (BSFs) with narrow bandwidth (BW), small physical size, and large stopband attenuation levels. They are realized by merging acoustic-wave-lumped-element resonators (AWLRs) and lumped-element impedance inverters in a single filter architecture. In this manner, deep stopband notches that correspond to resonators with effective quality factors (Q<sub>seff</sub>) on the order of 1000 are created. Furthermore, the obtained rejection bands exhibit fractional BWs that are no longer restricted by the electromechanical coupling coefficient k2t of the constituent acoustic wave (AW) resonators as opposed to the traditional all-AW filters. Experimental prototypes of first and third-order frequency-static BSFs were built and tested at 418 MHz to validate the proposed concept. Measured stopbands with 3-dB BWs from 0.2 to 0.5 MHz, maximum stopband attenuation in the range of 15-43 dB, and passband insertion loss between 0.37 and 1.6 dB are reported. Moreover, an electronically switchable BSF with dynamic notch allocation is presented as a practical demonstrator device for switchable RF-interference suppression. A design methodology that relates to coupled-resonator filter formalism is also addressed to facilitate the systematic theoretical synthesis of the engineered AWLR-based reflective-type BSFs.en_US
dc.publisherIEEEen_US
dc.relation.haspart7346441.pdfen_US
dc.subjectnotch filter|Acoustic wave (AW) filter|surface acoustic wave (SAW) filter|bandstop filter (BSF)|narrowband filter|high-quality-factor (Q) filter|tunable filteren_US
dc.titleHigh- Q Bandstop Filters Exploiting Acoustic-Wave-Lumped-Element Resonators (AWLRs)en_US
dc.typeArticleen_US
dc.journal.volume63en_US
dc.journal.issue1en_US
dc.journal.titleIEEE Transactions on Circuits and Systems II: Express Briefsen_US
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7346441.pdf1.07 MBAdobe PDFThumbnail
Preview File
Full metadata record
DC FieldValueLanguage
dc.contributor.authorDimitra Psychogiouen_US
dc.contributor.authorRoberto G&#x00F3;mez-Garc&#x00ED;aen_US
dc.contributor.authorDimitrios Peroulisen_US
dc.date.accessioned2020-05-20T08:56:54Z-
dc.date.available2020-05-20T08:56:54Z-
dc.date.issued2016en_US
dc.identifier.issn1549-7747en_US
dc.identifier.issn1558-3791en_US
dc.identifier.other10.1109/TCSII.2015.2505078en_US
dc.identifier.urihttp://localhost/handle/Hannan/138151en_US
dc.identifier.urihttp://localhost/handle/Hannan/601571-
dc.description.abstractThis brief focuses on the radio frequency (RF) design of novel high-quality-factor (Q) reflective-type bandstop filters (BSFs) with narrow bandwidth (BW), small physical size, and large stopband attenuation levels. They are realized by merging acoustic-wave-lumped-element resonators (AWLRs) and lumped-element impedance inverters in a single filter architecture. In this manner, deep stopband notches that correspond to resonators with effective quality factors (Q<sub>seff</sub>) on the order of 1000 are created. Furthermore, the obtained rejection bands exhibit fractional BWs that are no longer restricted by the electromechanical coupling coefficient k2t of the constituent acoustic wave (AW) resonators as opposed to the traditional all-AW filters. Experimental prototypes of first and third-order frequency-static BSFs were built and tested at 418 MHz to validate the proposed concept. Measured stopbands with 3-dB BWs from 0.2 to 0.5 MHz, maximum stopband attenuation in the range of 15-43 dB, and passband insertion loss between 0.37 and 1.6 dB are reported. Moreover, an electronically switchable BSF with dynamic notch allocation is presented as a practical demonstrator device for switchable RF-interference suppression. A design methodology that relates to coupled-resonator filter formalism is also addressed to facilitate the systematic theoretical synthesis of the engineered AWLR-based reflective-type BSFs.en_US
dc.publisherIEEEen_US
dc.relation.haspart7346441.pdfen_US
dc.subjectnotch filter|Acoustic wave (AW) filter|surface acoustic wave (SAW) filter|bandstop filter (BSF)|narrowband filter|high-quality-factor (Q) filter|tunable filteren_US
dc.titleHigh- Q Bandstop Filters Exploiting Acoustic-Wave-Lumped-Element Resonators (AWLRs)en_US
dc.typeArticleen_US
dc.journal.volume63en_US
dc.journal.issue1en_US
dc.journal.titleIEEE Transactions on Circuits and Systems II: Express Briefsen_US
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7346441.pdf1.07 MBAdobe PDFThumbnail
Preview File