help calculation values for bandpass filter

You could use node analysis or loop analysis. Do you have a more specific question?

Well, you first have to know what the input and output impedances are. Since the filter is symetrical, the input and output impedance is the same.

As i understand that C1 and C7 are for the input/output impedences based on the frequency, but what about C3 and C5?
And how all the series 3 stages LC define the bandwidth of the filter? If they have the same value?
Thanks

This is Band-Pass Filter approx. @7.1MHz Center Frequency.

how to analyze a circuit for RF? You could download a free version of Spice, or maybe Qucs, and just input the component values and analyze it.

The above comment about "impedance" is important though. Is it a 50 ohm generator and a 50 ohm load? Or is it a voltage source, and high impedance oscilloscope for a load? Makes a huge difference in the response.


https://www.microwaves101.com/encycl...e-eda-software

You can conclude that at least one port has a resistive termination, otherwise the filter gets resonances with infinite Q.

The filter topology is called coupled resonator, the shunt Cs are providing the coupling.