Power used in microstrip patch antennas

[Salving]

Hello, everybody. Can anyone tell me what amount of power may be used in patch antennas and what factors need to be taken into account when calculating forementioned power.

 

[Bob60]

It depends from structure. Patch antennas are different. But mainly Ohm low. P=U x I.

 

[FANT]

On our radaraltimeter it is about 50 W on 4 patches ( freq. 4,3 GHz ).

Mandi

 

[Salving]

Thanks all of you, but how do I determine the max current that may be used in patch antenna, what are factors it depends on?

 

[Bob60]

Factors are a lot. Loses, efficient but in your case with working frequency below 5GHz and pow up to 1KW no problem

 

[Salving]

I need to know if I can use 150 W of power (to transmit) in patch at freq 4.6 GHz

 

[Bob60]

Of course that is only 86V RMS AC or DC.

 

[Salving]

Thank you very much. But where'd you get that information? Is it from your experience?

 

[Bob60]

Thank you very much. But where'd you get that information? Is it from your experience?

No, It`s from primary school, Ohm low.