Wideband
From Wikipedia, the free encyclopedia
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.
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.
WIDEBAND is a registered trademark of WideBand Corporation, a USA based manufacturer of Gigabit Ethernet managed switches, adapters, and networking equipment. See www.wband.com
At the 2008 Consumer Electronics Show in Las Vegas, Comcast President and CEO, Brian Roberts used the term wideband in reference to the rollout 100/Mbs speeds across the Comcast Network; demonstrating the technology by downloading the movie Batman Begins in High Definition in 4 minutes.
