SPUDT-based filters: design principles and optimization
SPUDT-based filters: design principles and optimization
复制标题
基于SPUDT的滤波器：设计原理和优化
DOI：
10.1109/ultsym.1995.495537
复制
发表时间：
1995
期刊：
影响因子：
--
通讯作者：
P. Ventura
中科院分区：
文献类型：
--
作者：
J. Hode;J. Desbois;P. Difilie;M. Solal;P. Ventura
为了克服声表面波滤波器中的三次传输和插入损耗等难题，世界各国做了大量的工作。大多数针对低损耗的研究工作都包括在滤波器设计中引入反射。在过去的20年里，出现了两大类低损耗滤波器：谐振器滤波器和单相单向换能器滤波器。本文回顾了这第二类的设计原则，包括一些有代表性的实际装置的例子。
Tremendous work has been done all over the world to overcome the difficult problems of triple transit and insertion loss in SAW filters. Most of research efforts towards low losses have consisted of introducing reflections in the filter designs. Two major classes of low loss filters have emerged during the past 20 years, resonator filters and Single Phase UniDirectional Transducer (SPUDT) filters. This paper reviews the design principles of this second class, including some representative examples of actual devices.