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ULTRA WIDE BAND (UWB) TECHNOLOGY
Presented By :-NEHA SISODIA
EC- 12
0809040056
INTRODUCTION Ultra wide band (UWB) technology have been developed since 1980’s.
It is a revolutionary wireless technology for transmitting digital data over a wide spectrum of frequency bands with very low power.
It also has the ability to carry signals through doors and other obstacles.
WHAT IS UWB…??
It is a radio technology used for transmitting information spread over a large bandwidth (>500 MHz)
It is a technology that modulates impulse based waveforms instead of continuous carrier waves.
BEHAVIOUR OF UWB
ImpulseModulation
3 10 GHzfrequency
Ult
ra w
ideb
an
d
com
mu
nic
ati
on Time-domain behavior Frequency-domain behavior
time
1 0 1
(FCC Min=500Mhz)
FrequencyModulation
2.4 GHz
Narr
ow
ban
dC
om
mu
nic
ati
on
0 1 0 1
UWB SPECTRUM
1.6 1.9 2.4
Bluetooth,802.11bCordless PhonesMicrowave OvensGP
S
PC
S
5
802.11a
-41 dBm/Mhz“Part 15 Limit”
UWB Spectrum
Frequency (Ghz)10.63.1
WHY UWB IS SO INTERESTING….?? 7.5 Ghz of “free spectrum” in the U.S.
FCC recently legalized UWB for commercial use Its allowed power level is very low to minimize
interference Very high data rates possible
500 Mbps can be achieved at distances of 10 feet under current regulations
Simple CMOS transmitters at very low powerSuitable for battery-operated devicesLow power is CMOS friendly
Extremely low transmission energy ( less than 1mW)
Very high bandwidth within short range (200Mbps within 10m)
Extremely difficult to intercept
Multipath immunity
Frequency diversity with minimal hardware modifications
CHARACTERISTICS OF UWB :-
WHY UWB….??
Few key areas need to be resolved :-
Interoperability
Ease of product integration & certification
Overall solution cost
Global spectrum allocation
ADVANTAGES OF UWB :-
Enables wireless connectivity with the high data rates Provides high bandwidth Allows various electronic devices to inter-operate without cables Used to enable high speed, low power network within hotspot locations
UWB APPLICATIONS 1: WPAN
MobileCluster
handheld PCs
tablets
MP3
PDAs
mobile phone
3Ghandsets
camera phones
laptops
printers
speakers
PCCluster
storagedevices
Scanners
scanners
DVDplayerscameras
CECluster
HDTV
STBs
VCRs
PVRs
camcordersconsole games
audiosystems
Desktop and Laptop PCs High res. printers, scanners,
storage devices, etc Connectivity to mobile and
CE devices
Mobile Devices Multimedia files, MP3, games, video Personal connectivity
CE Devices Cameras, STB, HDTV Personal connectivity
UWB APPLICATIONS 2 :Communications
Radars Tracking
CONCLUSION :-
UWB offers a solution for bandwidth, cost, power consumption and physical size requirements of next generation consumer electronic devices.
UWB is one step away from the wireless freedom.
THANK YOU…!!!