Two wireless module in same PCB

[Kick]

Hiii friends,

Is there any problem if I place 2 wireless module (let say wifi and BLE) on same PCB? Initially I tried a combo module from LSR (TiWi5),but in that module wifi interfacing through SDIO, PIC uC doesn't have that interfacing so I left that plan. I hope this time it will be fine,expecting a positive reply...thanks...

 

[fouwad]

No there will be no problem ONLY if the two modules dont share the same frequency bands. But still you should use proper filters in your system

 

[Kick]

Thanks for your reply. I think both can share with same frequency(2.45GHz),but not same time.

 

[Kick]

Should I use 2 separate antenna or 1 antenna is sufficient for both?

 

[gatzrulz]

It depends on the antenna what you are using(Example: 3db, 5db). in case if you are not going to use both the wireless devices at a time then u can use a same antenna for both.

but its always best practice to use a separate antenna.

 

[Kick]

Thanks,even I too thinking the same thing. My idea is to use modules with integrated PCB trace antenna.

 

[fouwad]

Its a better practice to use separate antennas