{"title":"一种2ghz固有可切换平衡铁电FBAR滤波器","authors":"M. Koohi, Wenhao Peng, A. Mortazawi","doi":"10.1109/IMS30576.2020.9223799","DOIUrl":null,"url":null,"abstract":"An intrinsically switchable balanced lattice-ladder ferroelectric thin film bulk acoustic resonator (FBAR) filter is presented for the first time. A 1.5 stage balanced ladder-type filter and a 2-pole lattice-type filter with a center frequency at 2 GHz are first designed through the image parameter method. Subsequently, the filters are connected in series to form a ladder-lattice filter and fabricated based on ferroelectric barium strontium titanate (BST) FBARs. The measured two-section balanced filter provides a high out-of-band rejection and OFF-state isolation levels of more than 40 dB with a sharp roll-off.","PeriodicalId":6784,"journal":{"name":"2020 IEEE/MTT-S International Microwave Symposium (IMS)","volume":"84 1","pages":"131-134"},"PeriodicalIF":0.0000,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"An Intrinsically Switchable Balanced Ferroelectric FBAR Filter at 2 GHz\",\"authors\":\"M. Koohi, Wenhao Peng, A. Mortazawi\",\"doi\":\"10.1109/IMS30576.2020.9223799\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An intrinsically switchable balanced lattice-ladder ferroelectric thin film bulk acoustic resonator (FBAR) filter is presented for the first time. A 1.5 stage balanced ladder-type filter and a 2-pole lattice-type filter with a center frequency at 2 GHz are first designed through the image parameter method. Subsequently, the filters are connected in series to form a ladder-lattice filter and fabricated based on ferroelectric barium strontium titanate (BST) FBARs. The measured two-section balanced filter provides a high out-of-band rejection and OFF-state isolation levels of more than 40 dB with a sharp roll-off.\",\"PeriodicalId\":6784,\"journal\":{\"name\":\"2020 IEEE/MTT-S International Microwave Symposium (IMS)\",\"volume\":\"84 1\",\"pages\":\"131-134\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 IEEE/MTT-S International Microwave Symposium (IMS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IMS30576.2020.9223799\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE/MTT-S International Microwave Symposium (IMS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IMS30576.2020.9223799","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
An Intrinsically Switchable Balanced Ferroelectric FBAR Filter at 2 GHz
An intrinsically switchable balanced lattice-ladder ferroelectric thin film bulk acoustic resonator (FBAR) filter is presented for the first time. A 1.5 stage balanced ladder-type filter and a 2-pole lattice-type filter with a center frequency at 2 GHz are first designed through the image parameter method. Subsequently, the filters are connected in series to form a ladder-lattice filter and fabricated based on ferroelectric barium strontium titanate (BST) FBARs. The measured two-section balanced filter provides a high out-of-band rejection and OFF-state isolation levels of more than 40 dB with a sharp roll-off.
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