|
Cutoff Wavelength
In physics and electrical engineering, a cutoff frequency, corner frequency, or break frequency is a boundary in a system's frequency response at which energy flowing through the system begins to be reduced ( attenuated or reflected) rather than passing through. Typically in electronic systems such as filters and communication channels, cutoff frequency applies to an edge in a lowpass, highpass, bandpass, or band-stop characteristic – a frequency characterizing a boundary between a passband and a stopband. It is sometimes taken to be the point in the filter response where a transition band and passband meet, for example, as defined by a half-power point (a frequency for which the output of the circuit is −3 dB of the nominal passband value). Alternatively, a stopband corner frequency may be specified as a point where a transition band and a stopband meet: a frequency for which the attenuation is larger than the required stopband attenuation, which for example may b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bandwidth
Bandwidth commonly refers to: * Bandwidth (signal processing) or ''analog bandwidth'', ''frequency bandwidth'', or ''radio bandwidth'', a measure of the width of a frequency range * Bandwidth (computing), the rate of data transfer, bit rate or throughput * Spectral linewidth, the width of an atomic or molecular spectral line Bandwidth may also refer to: Science and technology * Bandwidth (linear algebra), the width of the non-zero terms around the diagonal of a matrix * Kernel density estimation, the width of the convolution kernel used in statistics * Graph bandwidth, in graph theory * Coherence bandwidth, a frequency range over which a channel can be considered "flat" * Power bandwidth, a frequency range for which power output of an amplifier exceeds a given fraction of full rated power Other uses * Bandwidth (company), an American communications provider * ''Bandwidth'' (radio program), a Canadian radio program * Bandwidth, a normative expected range of linguistic behavior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
