Spin-wave microscale RF delay lines for mid- and high-frequency 5G band

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dc.contributor.authorDavídková, Kristýnacs
dc.contributor.authorLevchenko, Khrystyna O.cs
dc.contributor.authorSerha, Rostyslav O.cs
dc.contributor.authorBruckner, Floriancs
dc.contributor.authorLindner, Morriscs
dc.contributor.authorDubs, Carstencs
dc.contributor.authorUrbánek, Michalcs
dc.contributor.authorSuess, Dietercs
dc.contributor.authorWang, Qics
dc.contributor.authorVerba, Roman V.cs
dc.contributor.authorChumak, Andrii V.cs
dc.coverage.issue14cs
dc.coverage.volume138cs
dc.date.accessioned2025-10-30T23:05:11Z
dc.date.available2025-10-30T23:05:11Z
dc.date.issued2025-10-14cs
dc.description.abstractDelay lines (DL) are crucial components in communication systems, providing the required time delays for signal timing, synchronization, and processing. DLs providing nanosecond-scale delays are conventionally based on acoustic waves; however, they cannot operate conveniently in a high-frequency range (EU 5G high-band 24.25-27.5 GHz) required by a modern generation of 5G communication technologies to speed up data transfer. The proposed solution is to use DL based on spin-wave (SW) transmission, as SW devices allow for operation at high-frequency ranges and can be scaled down to a few m 2 . In this study, we investigate SW-based DL at the microscale at the frequency ranges of 4, 9, and 25 GHz. The DL is based on SW transmission between a pair of 250 nm wide microwave coplanar waveguide transducers, each with a footprint of 2.25 × 100 m 2 , and fabricated with varying mutual distances on a 97 nm thin yttrium iron garnet film. DLs are tested for in-plane SW modes (Damon-Eshbach and backward volume), and depending on the parameters, the extracted delay times are in the range of 6-165 ns. Furthermore, the insertion losses are extracted and compared to other DL concepts. Time-gating analysis of the measured transmission is performed, providing a detailed discussion of individual signal contributions to the measured spectra. Additionally, analytical theory is employed to compare the experimental delay times with analytical calculations and to predict how to adjust the device parameters to obtain variable time delays.en
dc.description.abstractDelay lines (DL) are crucial components in communication systems, providing the required time delays for signal timing, synchronization, and processing. DLs providing nanosecond-scale delays are conventionally based on acoustic waves; however, they cannot operate conveniently in a high-frequency range (EU 5G high-band 24.25-27.5 GHz) required by a modern generation of 5G communication technologies to speed up data transfer. The proposed solution is to use DL based on spin-wave (SW) transmission, as SW devices allow for operation at high-frequency ranges and can be scaled down to a few m 2 . In this study, we investigate SW-based DL at the microscale at the frequency ranges of 4, 9, and 25 GHz. The DL is based on SW transmission between a pair of 250 nm wide microwave coplanar waveguide transducers, each with a footprint of 2.25 × 100 m 2 , and fabricated with varying mutual distances on a 97 nm thin yttrium iron garnet film. DLs are tested for in-plane SW modes (Damon-Eshbach and backward volume), and depending on the parameters, the extracted delay times are in the range of 6-165 ns. Furthermore, the insertion losses are extracted and compared to other DL concepts. Time-gating analysis of the measured transmission is performed, providing a detailed discussion of individual signal contributions to the measured spectra. Additionally, analytical theory is employed to compare the experimental delay times with analytical calculations and to predict how to adjust the device parameters to obtain variable time delays.en
dc.formattextcs
dc.format.extent1-13cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationJOURNAL OF APPLIED PHYSICS. 2025, vol. 138, issue 14, p. 1-13.en
dc.identifier.doi10.1063/5.0286108cs
dc.identifier.issn0021-8979cs
dc.identifier.orcid0000-0003-4398-2940cs
dc.identifier.orcid0000-0002-0903-5942cs
dc.identifier.orcid0009-0007-2962-1109cs
dc.identifier.orcid0000-0001-7778-6855cs
dc.identifier.orcid0000-0001-6760-929Xcs
dc.identifier.orcid0000-0003-0072-2073cs
dc.identifier.orcid0000-0001-5453-9974cs
dc.identifier.orcid0000-0002-5049-629Xcs
dc.identifier.orcid0000-0001-8811-6232cs
dc.identifier.orcid0000-0001-5515-0848cs
dc.identifier.other199172cs
dc.identifier.researcheridM-7120-2019cs
dc.identifier.urihttps://hdl.handle.net/11012/255614
dc.language.isoencs
dc.relation.ispartofJOURNAL OF APPLIED PHYSICScs
dc.relation.urihttps://pubs.aip.org/aip/jap/article/138/14/143908/3367672/Spin-wave-microscale-RF-delay-lines-for-mid-andcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0021-8979/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.titleSpin-wave microscale RF delay lines for mid- and high-frequency 5G banden
dc.title.alternativeSpin-wave microscale RF delay lines for mid- and high-frequency 5G banden
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-199172en
sync.item.dbtypeVAVen
sync.item.insts2025.10.31 00:05:11en
sync.item.modts2025.10.30 12:32:53en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Sdílená laboratoř RP1cs
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