{"title":"基于声波块元谐振器的带通滤波器的新型增大分数带宽技术","authors":"Xianli Tang, Yonghao Jia","doi":"10.1049/ell2.13278","DOIUrl":null,"url":null,"abstract":"<p>A novel enlarging fractional bandwidth (FBW) technique for acoustic-wave-lumped-element resonator (AWLR)-based bandpass filters is presented. The new technique is based on a series of matching inductors that replace the parallel or series acoustic wave (AW) resonators of AW filters to beak the bandwidth constraint of the ladder-type structure. In addition, the transmission response analysis of the proposed AWLR-based filter is provided. A prototype of the AWLR-based filter is fabricated and tested to validate the proposed FBW widening technique. The measured insertion loss, FBW, and out-of-band rejection are 1.5 dB, 1.63<i>k<sub>t</sub></i><sup>2</sup> (<i>k<sub>t</sub></i><sup>2</sup> is the electromechanical coupling coefficient of the AWR), and 38 dB, respectively.</p>","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.13278","citationCount":"0","resultStr":"{\"title\":\"A novel enlarging fractional bandwidth technique for acoustic-wave-lumped-element resonator-based bandpass filters\",\"authors\":\"Xianli Tang, Yonghao Jia\",\"doi\":\"10.1049/ell2.13278\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A novel enlarging fractional bandwidth (FBW) technique for acoustic-wave-lumped-element resonator (AWLR)-based bandpass filters is presented. The new technique is based on a series of matching inductors that replace the parallel or series acoustic wave (AW) resonators of AW filters to beak the bandwidth constraint of the ladder-type structure. In addition, the transmission response analysis of the proposed AWLR-based filter is provided. A prototype of the AWLR-based filter is fabricated and tested to validate the proposed FBW widening technique. The measured insertion loss, FBW, and out-of-band rejection are 1.5 dB, 1.63<i>k<sub>t</sub></i><sup>2</sup> (<i>k<sub>t</sub></i><sup>2</sup> is the electromechanical coupling coefficient of the AWR), and 38 dB, respectively.</p>\",\"PeriodicalId\":11556,\"journal\":{\"name\":\"Electronics Letters\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2024-07-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.13278\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electronics Letters\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1049/ell2.13278\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electronics Letters","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/ell2.13278","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
摘要
本文介绍了一种用于基于声波块元谐振器(AWLR)的带通滤波器的新型扩大分数带宽(FBW)技术。新技术基于一系列匹配电感器,取代 AW 滤波器的并联或串联声波(AW)谐振器,以克服阶梯型结构的带宽限制。此外,还提供了拟议的基于 AWLR 的滤波器的传输响应分析。制作并测试了基于 AWLR 的滤波器原型,以验证所提出的 FBW 加宽技术。测得的插入损耗、FBW 和带外抑制分别为 1.5 dB、1.63kt2(kt2 是 AWR 的机电耦合系数)和 38 dB。
A novel enlarging fractional bandwidth technique for acoustic-wave-lumped-element resonator-based bandpass filters
A novel enlarging fractional bandwidth (FBW) technique for acoustic-wave-lumped-element resonator (AWLR)-based bandpass filters is presented. The new technique is based on a series of matching inductors that replace the parallel or series acoustic wave (AW) resonators of AW filters to beak the bandwidth constraint of the ladder-type structure. In addition, the transmission response analysis of the proposed AWLR-based filter is provided. A prototype of the AWLR-based filter is fabricated and tested to validate the proposed FBW widening technique. The measured insertion loss, FBW, and out-of-band rejection are 1.5 dB, 1.63kt2 (kt2 is the electromechanical coupling coefficient of the AWR), and 38 dB, respectively.
期刊介绍:
Electronics Letters is an internationally renowned peer-reviewed rapid-communication journal that publishes short original research papers every two weeks. Its broad and interdisciplinary scope covers the latest developments in all electronic engineering related fields including communication, biomedical, optical and device technologies. Electronics Letters also provides further insight into some of the latest developments through special features and interviews.
Scope
As a journal at the forefront of its field, Electronics Letters publishes papers covering all themes of electronic and electrical engineering. The major themes of the journal are listed below.
Antennas and Propagation
Biomedical and Bioinspired Technologies, Signal Processing and Applications
Control Engineering
Electromagnetism: Theory, Materials and Devices
Electronic Circuits and Systems
Image, Video and Vision Processing and Applications
Information, Computing and Communications
Instrumentation and Measurement
Microwave Technology
Optical Communications
Photonics and Opto-Electronics
Power Electronics, Energy and Sustainability
Radar, Sonar and Navigation
Semiconductor Technology
Signal Processing
MIMO