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

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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

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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…!!!