What is a cavity filter?: Difference between revisions
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Cavity filters are the basic circuitry behind a '''Duplexer''' and are sharply tuned resonant circuit that allow only certain frequencies to pass. Generically, filter | Cavity filters are the basic circuitry behind a '''Duplexer''' and are sharply tuned resonant circuit that allow only certain frequencies to pass. Generically, filter of this kind are known as notch filters. | ||
Physically a cavity filter is a resonator inside a conducting "box" with coupling loops at the input and output, as follows: | Physically a cavity filter is a resonator inside a conducting "box" with coupling loops at the input and output, as follows: | ||
[[Image:VK4YEH_Cavity_1.jpg | 400px]] | [[Image:VK4YEH_Cavity_1.jpg | 400px]] | ||
Revision as of 02:11, 11 September 2008
Cavity filters are the basic circuitry behind a Duplexer and are sharply tuned resonant circuit that allow only certain frequencies to pass. Generically, filter of this kind are known as notch filters.
Physically a cavity filter is a resonator inside a conducting "box" with coupling loops at the input and output, as follows:
