{"title":"Ultra wide band elastic resonators and their application: SH0 mode plate wave resonators with ultra wide bandwidth of 29 %","authors":"M. Kadota, T. Ogami, T. Kimura","doi":"10.1109/ISAF.2012.6297740","DOIUrl":null,"url":null,"abstract":"Currently, an ultra wide band resonator to realize a tunable filter with a wide tunable range is strongly required, because a mobile phone with multi-bands and a cognitive radio system require such tunable filters to simplify their circuits. This time, authors realized resonators with ultra wide bandwidths of 26 to 29 % and a large impedance ratio of 92 to 98 dB between resonant and anti-resonant frequencies using an SH0 plate wave in a LiNbO3 plate. In addition, a band pass type tunable filter with a tunable range of 16 to 18 % was realized using the resonators.","PeriodicalId":20497,"journal":{"name":"Proceedings of ISAF-ECAPD-PFM 2012","volume":"1 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2012-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of ISAF-ECAPD-PFM 2012","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISAF.2012.6297740","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8
Abstract
Currently, an ultra wide band resonator to realize a tunable filter with a wide tunable range is strongly required, because a mobile phone with multi-bands and a cognitive radio system require such tunable filters to simplify their circuits. This time, authors realized resonators with ultra wide bandwidths of 26 to 29 % and a large impedance ratio of 92 to 98 dB between resonant and anti-resonant frequencies using an SH0 plate wave in a LiNbO3 plate. In addition, a band pass type tunable filter with a tunable range of 16 to 18 % was realized using the resonators.
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