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 ?
The fundamental cut off frequency of the waveguide part can be derived from Equation (11) [30].
So, first resonance of the antenna should occur after the fundamental cut off frequency 11.
It is seen that, with an increase in the slot width, the lower cut off frequency decreases, and the bandwidth increases.
When the width of DGS is increased, the cut off frequency of the parallel resonant circuit in equivalent circuit decreases, and because c2 has same value, the lower stop frequency does not change significantly.
This finding indicates that further increasing the center dipole length could lower the cut off frequency and thus produce better impedance bandwidth.
Formed on a large diameter silicon substrate, the gallium nitride high electron mobility transistor (GaN-HEMT) achieves a world record transconductance rating of 350mS/mm, a maximum oscillation frequency of 115GHz and a current gain cut off frequency of 56GHz, which are all comparable to figures achieved on conventional silicon carbide (SiC) substrates.
The receiver chain includes a low pass filter with programmable cut off frequency, enabling the PHY3070 to support five discrete data rates in the range 1Gbps to 10.
A traditional DGS element uses a dumbbell-shaped pattern etched in the ground plane and can provide only one attenuation pole [6], which limits the bandwidth of the stopband and the cut off frequency responses.
Cut off frequency is an indicator of frequency performance for devices, and determined when the gain is 1.
The KNA21 EMI filter features a cut off frequency of 400MHz and attenuation range of 800MHz to 2.
Low pass frequency (LPF) circuitry is built-in, with a cut off frequency of 7 kilohertz (KHz), to prevent harmless vibration from interfering with disk drive operation.