Not getting expected band pass filter response
I applied the formulae given in the reference link posted in the comments to the question. I used the frequency values 860MHz and 900.5 MHz for f1 and f2 (no particular reason).

From the values of components obtained, I made the filter in SPICE.

Then plotted the response to get the desired bandpass response.

I also noticed that the filter pass band flatness is quite sensitive to the number of decimal places used for the simulation. Hence my circuit above has up to 4 significant digits for the component values.