An LC filter is composed of inductors (L) and capacitors (C) and features a simple structure and relatively low cost, making it easy to design and implement. Its advantages include an intuitive operating principle, suitability for low- to mid-frequency applications, low insertion loss, and relatively high power-handling capability. As a result, LC filters are widely used in power supply filtering, audio circuits, and general RF applications. In addition, their parameters can be flexibly adjusted by changing component values, which facilitates tuning and maintenance.

However, LC filters also have notable limitations. First, inductors and capacitors tend to be relatively large in size, which is unfavorable for high-density and miniaturized designs. Second, parasitic parameters of the components degrade performance at higher frequencies, making LC filters unsuitable for high-frequency or wideband applications. Furthermore, their consistency and stability are strongly affected by component tolerances, and temperature drift and aging may impact long-term performance.

Yun Micro, as the professional manufacturer of rf passive components, can offer the cavity filters up 40GHz,which include band pass filter, low pass filter, high pass filter, band stop filter.

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