What types of modulation does antenna use?

[thegame2008]

i want to ask about what type of modulation does antenna uses?
maybe there are differnt types ?can any one give me some information /
does dipole antennas nd yagi uda antenna have modulation for RADIO and tv i hope my question is clear thanks

 

[VSWR]

Re: modulation ???

An antenna can transmit or receive signals having any type of modulation. There is no limitation, as long as the modulated signal frequency spectrum lays within the bandwidth of the antenna.

Dipole and Yagi antennas work excellent with signals modulated for use with radio and TV transmissions.

 

[thegame2008]

modulation ???

thanks VSWR forr ur kind answer but to be honest if my teacher asks me what does yagi antenna uses as a modelation in radio and tv transmisiion so what will be the answer is there a special type

 

[vfone]

Re: modulation ???

The wireless system works properly when the antenna has a bandwidth (3dB roll-off gain, 2:1 VSWR, or whatever) greater than the modulation bandwidth.
In a standard TV case, the modulation BW is between 5 and 8MHz.