In physics and electrical engineering, the term cutoff frequency or corner frequency represents a boundary in the system response at which energy entering the system begins to be attenuated or reflected instead of transmitted. Common examples are the cutoff frequency of an electronic circuit: either the lowest or the highest frequency for which the output of the circuit deviates less than 3 dB from the nominal value.the lowest frequency or longest wavelength which can be transmitted through a waveguide.
See more at Wikipedia.org...
1. The frequency either above which or below which the output of a circuit, such as a line, amplifier, or filter, is reduced to a specified level. (188 ) 2. The frequency below which a radio wave fails to penetrate a layer of the ionosphere at the incidence angle required for transmission between two specified points by reflection from the layer. (188 )
Free Download Now!
