声表面波技术的发展是本世纪六十年代末七十年代初无线电电子技术最有意义的成就之一,目前已制成了完成种种功能的声表面波器件,如滤波器,延迟线,振荡器、放大器、利用非线性效应的器件、声光器件以及表面波声摄象装置等。这些表面波器件的主要组成部分是压电材料基片和叉指电极换能器。压电材料的性能对声表面波器件的发展有很大的影响,本文简单介绍声表面波器件用的压电材料。一、声表面波器件用的压电材料 The development of surface acoustic wave technology is one of the most significant achievements of radio electronic technology in the late sixties and the seventies of this century. So far, it has been made into various functions of surface acoustic wave devices such as filters, delay lines, oscillators Devices, amplifiers, devices that utilize nonlinear effects, acousto-optic devices, and surface acoustic wave imaging devices. The main components of these surface wave devices are piezoelectric substrates and interdigital transducers. Piezoelectric properties of SAW devices have a great impact on the development of this article is a brief introduction of SAW devices piezoelectric materials. First, the surface acoustic wave device with piezoelectric materials