声表面波技术在电视领域中的应用北京中国航天总公司测控公司苟永明１前言自从１９６５年怀特发明了激励和检测声表面波（ＳＡＷ）的叉指换能器后，近３０多年的时间，世界各国已研制成功了１００多种ＳＡＷ器件，其中有２０多个品种已投入大批量生产，广泛用于无线电通信... Surface acoustic wave technology in the field of television Beijing China Aerospace Corporation Measurement and Control Company Gou Yongming 1 Introduction Since 1955, White invented the excitation and detection of surface acoustic wave (SAW) interdigital transducers, nearly 30 years time, More than 100 kinds of SAW devices have been successfully developed in all countries in the world, of which more than 20 varieties have been put into mass production and are widely used in radio communication.