The effective filtering frequency range of common interference filters is from several KHz to MHz, and the effective filtering frequency of RF interference filters is from several KHz to more than GHz.
Wafer refers to a silicon wafer used for silicon semiconductor integrated circuit fabrication. Because of its circular shape, it is called a wafer.
In a mobile communication system, whether it is digital or analog, the circuit structure of its functional modules for transmitting and receiving signals is basically the same
Lithium niobate (LiNbO3 or LN) is among the most flexible and well-developed active optical substances. The crystal finds broad application in electro-optics, acousto-optics, nonlinear optics and guided-wave optics.
Filters, as the name suggests, are devices that filter waves. "Wave" is a very broad physical concept. In the field of electronic technology, "wave" is narrowly confined to the process of describing changes in the value of various physical quantities over time.
Wafer refers to a silicon wafer used in silicon semiconductor integrated circuit manufacturing. Since it has a round shape, it is called a wafer; on the silicon wafer(fused quartz substrate), it can be processed into various circuit element structures and become an IC with a specific electrical function.
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