output power of antenna
Thanks!
I don't think that I understand your question. Antenna has no output power, it has gain.
How ? sure Antenna has o/p power which is the power in its radiation resistance and that power control how long distance will the signal travel in the medium ! ! !
sorry, I am not familiar with the concept about rf system. I wish to design an amplifier in radio over fiber link.The input of the amplifer is the signal from the antenna, and the output of the amplifier is to the laser. I wish to estimate the range of the signal intensity in a practial 802.11system on fiber, I think it is helpfule for me to design the circuit.Could anyone give me some guide?
The ouput you receive out the antenna will be
variable, can go from -75/-85/-95 dBm up to
0/10/20 dBm. The output depends on the link(distance),
if you have the antenna close to the access point
then the energy collected is big.
I think will be very difficult to complain with this because the amplitude of the RF signal is very variable depending on the RF field surronding the antenna, instead you have not a so wide dynamic range on the laser modulation.
Even trying with a log detector it will not modify the situation because the frequency and phase informations will be lost.
The only way is to decode the incoming signal and THEN modulate the laser with the data.
Mandi
Exactly.
Added after 5 minutes:
How ? sure Antenna has o/p power which is the power in its radiation resistance and that power control how long distance will the signal travel in the medium ! ! !