论文部分内容阅读
很久以来就用水晶作为谐振器,同电感和电容合在一起可以作成滤波器。从前的晶体滤波器不适应现在的微型化和成批生产。
Crystal has long been used as a resonator, together with the inductance and capacitance can be made filter. The former crystal filters are not suitable for the current miniaturization and mass production.