Cutoff Frequency

Cutoff frequency is the frequency at which a filter attenuates a signal by half (-3dB) of its original amplitude. In space and astronautical engineering, cutoff frequency is an important parameter in designing communication systems, especially in satellite communication. It determines the highest frequency that can pass through a filter or a channel without significant attenuation. The cutoff frequency is influenced by the characteristics of the filter or the channel, such as its bandwidth, gain, and impedance. In satellite communication, the cutoff frequency is used to determine the maximum data rate that can be transmitted through a given channel. It is also used to design antennas and other communication equipment that can operate at specific frequencies.
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