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采用老化稳定性高的石英谐振器制作115MHz的晶体滤波器是必要的和有意义的,本文着重讨论了这一问题。当采用小玻壳石英谐振器,加上温度补偿措施之后,使这种滤波器的稳定性有了很大的改善。
It is necessary and meaningful to make a 115MHz crystal filter by using a quartz resonator with high aging stability. This article focuses on this issue. When using a small glass quartz resonator, coupled with temperature compensation measures, so that the stability of this filter has been greatly improved.