WIRELESS TRANSMISSION
MEDIA
Typs of light wave
·
Infrared
(irDA)
·
Radio
wave
·
Microwave
#. Infrared wireless transmission media :-
Ø Used in small distance
communication or controlling section
Ø Range 1 to 500 miter
Ø DTR 1 to 100 mbps
Ø Developed by irDA
(infrared data associate )
Ø Frequency 1000 GHz to
400 THz
#. Radio wave wireless transmission media:-
Ø Range 70 miter to 1 km
Ø DTR 1 to 10 mbps
Ø Used in small distance
communication or mobile data communication with frequency 10 kHz to 1000 MHz
Imp :- ILD = Injection laser diode
#. Microwave wireless transmission media :-
Ø Range 50 miter or more
Ø DTR 1 to 10 mbps
Ø With frequency 1000
MHz to 1000 GHz
Ø Long distance
communication
Note :- èirDA - infrared energy is light that we can’t see
but our bodies can detect as heat
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