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cutoff frequency

   Also found in: Acronyms, Wikipedia 0.01 sec.
cutoff frequency [′kət‚ȯf ‚frē·kwən·sē]
(electronics)
A frequency at which the attenuation of a device begins to increase sharply, such as the limiting frequency below which a traveling wave in a given mode cannot be maintained in a waveguide, or the frequency above which an electron tube loses efficiency rapidly. Also known as critical frequency; cutoff.


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The upper working frequency is set by the cutoff frequency for plane wave propagation and is defined as [[Florin].
The curve has been generated using an SAE low-pass filter with a cutoff frequency of 1000 Hz.
 
 
 
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