Design And Fabrication Technology On Surface Acoustic Wave Devices For Mobile Radio Communication

In recent years the subscribers of mobile radio telephones have been rapidly increasing in various countries, and many communication systems have been continuously proposed. R&D activities and their products for the small-size and light -weight portable radio telephones have accelerated a big demand abruptly. The digital mobile communication standards like GSM,ADC,JDC and PCN allow more effective utilization of frequency allocation, hgher-quality telephony, hgher-grade telematique services and entire roaming in the their operational areas.