Hi FvM,
thanks for your answer.
Please, let me comment some doubts I have about.
lambda = c / (f * sqrt(Er)) -> lambda = 0.0959 m
c = 3*10^8 m/s
f =2.4 GHz
Er = 4.5 (FR4)
Then:
length -> lambda / 10 = 5.959 mm
So, if I only do a simple calculation, even if it is no precise, there is:
Characteristic Impedance is almost 50 Ohm.
Then, if I do the calculations dividing into two parts the line (I know this is not the right manner, but it is the way I read about).
1. Coupled MSLine (first stretch).
2. MSLine (second stretch).
It seems to be near 50 Ohm too.
Although it is still pending to adjust matching network component values, I think 0.3 mm width could be suitable for maintaining the right impedance.
That's what I'm asking about the trace width at IC pads.
Please, if I'm wrong I wonder you to help with the steps to follow, so I can fix my design.
Regards.