Wideband

All you want to know about Wideband

For the automotive term, see Wideband (automotive).

In communications, wideband is a relative term used to describe a wide range of frequencies in a spectrum. A system is typically described as wideband if the message bandwidth significantly exceeds the channel's coherence bandwidth. Some communication links have such a high data rate that they are forced to use a wideband bandwidth; others links may have relatively low data rates, but deliberately use a wider bandwidth than "necessary" for that data rate in order to gain other advantages; see spread spectrum.

A wideband antenna is one with approximately or exactly the same operating characteristics over a very wide passband. Distinguished from broadband antennas, where the passband is large, but the gain and/or pattern need not stay the same over the passband.

Wideband in speech services means that the used speech frequency response covers 50-7000 Hz. The opposite of wideband is narrowband.

See also

Retrieved from "http://en.wikipedia.org/wiki/Wideband"

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