At those frequencies, discrete solutions can give you a very suitable results..
If you use discrete SMD high quality components from Murata, AVX, Johansson, Dielec Labs. etc, you can easily achieve 1dB or less insertion loss at that frequency.A Bandpass filter can be realized by using few components..
But make your layout first and then simulate it with components' equivalent circuits in ADS by applying EM Cosimulation feature to find "leaks and parasitics of your layout" to optimize your circuit.