混合结构声表面波滤波器的设计  

Design of Surface Filter Based on Hybrid Structure

作　　者：陈晓阳 王永安 叶志 高黄杰 曹玉 CHEN Xiaoyang;WANG Yong’an;YE Zhi;GAO Huangjie;CAO Yu(Beijing Institute of Radio Measurement,Beijing 100854,China;Beijing Aerospace Micro-electronics Technology CO.,LTD.,Beijing 100854,China)

机构地区：[1]北京无线电测量研究所,北京100854 [2]北京航天微电科技有限公司,北京100854

出　　处：《压电与声光》2023年第3期331-334,共4页Piezoelectrics & Acoustooptics

摘　　要：为了提高矩形系数,该文针对混合结构的声表面波滤波器的设计展开研究。建立仿真模型,采用纵向耦合结构级联单个谐振器或多个谐振器,并在36°Y-X LiTaO_(3)和41°Y-X LiNbO_(3)压电材料上研制出两种声表面波滤波器。测试结果表明,滤波器的矩形系数分别为1.7和2,测试与仿真结果基本吻合。In order to improve the rectangle factor,the paper described the design of a hybrid structure SAW filter.By established simulate model,a hybrid structure of longitudinally coupled resonator filter cascading single resonator or multiple resonators are used,two kinds of SAW filters have been developed on 36°Y-X LiTaO_(3) and 41°Y-X LiNbO_(3) piezoelectric materials.The rectangle factor of the filters are 1.7 and 2,the test results are consistent with the simulation results.

关 键 词：矩形系数 混合结构 声表面波 纵向耦合 谐振器 

分 类 号：TN384[电子电信—物理电子学] TN65