Does there exist any wireless communication-applications (like TV,FM/AM Radio,Radar,Mobile Towers,etc.)in UWB (Ultra Wide Band) ?
Is it an emerging technology ?

Can anybody tell about all the Frequency Bands that we are using in current wireless domain ?

 

There are some radar applications, particularly ground penetrating radar GPR and wall penetrating radar. The applications are low power, high bandwidth and don't work for TV, FM or AM.

http://www.fcc.gov/oet/ea/presentations/files/may04/May_04-Ultra-Wideband-AL.pdf
http://www.fcc.gov/oet/ea/presentations/files/may05/UWB_Tech_SJ.pdf
http://fjallfoss.fcc.gov/edocs_public/attachmatch/DOC-220001A4.pdf