Compared with dielectric filters, thin-film filters offer clear advantages in size, integration level, and high-frequency performance. Thin-film filters are typically realized using thin-film processes or acoustic effects, resulting in small size and low weight. They are well suited for highly integrated RF front-end modules, especially in mobile terminals and high-density electronic systems. In addition, they exhibit good consistency and mass-production capability, which is beneficial for large-scale applications.

In terms of performance, thin-film filters can achieve steep frequency selectivity and good out-of-band rejection in the mid-to-high frequency range (such as the GHz band), making them suitable for applications with strict spectrum isolation requirements. However, their power-handling capability is relatively limited, and they are more sensitive to temperature and mechanical stress, which may affect performance stability in high-power or harsh environments.

By contrast, dielectric filters are larger and less suitable for high integration, but they offer higher Q factor, lower insertion loss, and much stronger power-handling capability, making them more appropriate for high-power applications such as base stations. Overall, thin-film filters are better suited for compact, low-power, and highly integrated applications, while dielectric filters are more advantageous in scenarios requiring high power and high stability.

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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