cutoff frequency


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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.
References in periodicals archive ?
In some cases, the combustion chamber cannot be simulated using the transfer matrices described earlier because the geometry is too complex or the plane wave cutoff frequency has been exceeded.
This choice of time window low-pass-filtered the data with a cutoff frequency of approximately 5 Hz, above the highest frequencies typically used in voluntary movement [13].
and a stopband from the RH cutoff frequency to [infinity] ([f.
Typical cutoff frequency is 400MHz, allowing for excellent signal integrity for clock frequencies as high as 125 MHz.
Well the subwoofer may or may not have an internal high pass filter, which often has a knob that claims to change the cutoff frequency but often also changes the Q of the roll off--and it may be badly miscalibrated to boot.
Transmission loss is not typically used by the ASHRAE community because it is problematic as a metric above the cutoff frequency.
High pass filter is a filter that passes high frequencies but attenuates or reduces the amplitude of frequencies lower than the cutoff frequency of the filter.
The ratio between cutoff frequency and the Nyquist frequency is 1:10 for F1 and 1:20 for F2.
Taking advantage of greater than 200 GHz cutoff frequency offered in a Si-Ge process and advanced design architecture of TiaLinx, the Cheetah Core set is revolutionizing multi- discipline DoD and commercial projects and positioning TiaLinx to be a leader in addressing applications related to precision target detection, test and instrumentation, and optical networking markets.
Third, the Steradian still incorporates a filter that changes your Focus speakers from a 4th-order system on the bottom end (the natural characteristic of a vented system) into a 6th-order system with a lower cutoff frequency but a steeper rolloff below cutoff (there ain't no such thing as a free lunch).
The cutoff frequency for common mode noise reduction is 40 megahertz (MHz) and typical common mode impedance at 100 MHz and 500 MHz is 200 ohm and 500 ohm, respectively.
For most cases, the plane wave cutoff frequency can be determined using the equation