Initial Design and Quick Analysis of SAW Ultra–Wideband HFM Transducers

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dc.contributor.authorJaneliauskas, Arturas
dc.contributor.authorMarkevicius, Vytautas
dc.contributor.authorNavikas, Dangirytis
dc.contributor.authorAndriukaitis, Darius
dc.contributor.authorValinevicius, Algimantas
dc.contributor.authorZilys, Mindaugas
dc.coverage.issue3cs
dc.coverage.volume26cs
dc.date.accessioned2017-09-15T08:41:54Z
dc.date.available2017-09-15T08:41:54Z
dc.date.issued2017-09cs
dc.description.abstractThis paper presents techniques for initial design and quick fundamental and harmonic operation analysis of surface acoustic waves ultra–wideband hyperbolically frequency modulated (HFM) interdigital transducer (IDT). The primary analysis is based on the quasi–static method. Quasi–electrostatic charge's density distribution was approximated by Chebyshev polynomials and the method of Green’s function. It assesses the non uniform charge distribution of electrodes, electric field interaction and the end effects of a whole transducer. It was found that numerical integration (e.g. Romberg, Gauss–Chebyshev) requires a lot of machine time for calculation of the Chebyshev polynomial and the Green’s function convolution when integration includes coordinates of a large number of neighboring electrodes. In order to accelerate the charge density calculation, the analytic expressions are derived. Evaluation of HFM transducer fundamental and harmonics' operation amplitude response with simulation single–dispersive interdigital chirp filter structure is presented. Elapsed time of HFM IDT with 589 electrodes simulations and 2000 frequency response point is only 54 seconds (0.027 s/point) on PC with CPU Intel Core I7–4770S. Amplitude response is compared with linear frequency modulated (LFM) IDT response. It was determined that the HFM transducer characteristic is less distorted in comparison with LFM transducer.en
dc.formattextcs
dc.format.extent682-690cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2017 vol. 26, č. 3, s. 682-690. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2017.0682en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/69965
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2017/17_03_0682_0690.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectSurface acoustic waveen
dc.subjectSAWen
dc.subjecthyperbolically frequency modulated waveformsen
dc.subjectHFMen
dc.subjectinterdigital transduceren
dc.subjectIDTen
dc.subjectquasi–static methoden
dc.subjectChebyshev polynomial approximationen
dc.subjectGreen’s functionen
dc.subjectinterdigital chirp filteren
dc.subjectharmonics' operationen
dc.titleInitial Design and Quick Analysis of SAW Ultra–Wideband HFM Transducersen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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