Hi everyone - I'm trying to figure out this "tack hammer" method of determining the impedance and transfer function of an arbitrary length RCL ladder filter. This method is briefly explained in the second chapter of Wes Hayward's book "Introduction To Radio Frequency Design," however it is gone over very briefly and no worked examples are given, so I'm at a loss. I guess the basic idea is that for each "plane" in the ladder filter one determines the admittance, calculates the impedance by doing a polar to rectangular conversion, changing the signs, converting back to rectangular coordinates, and then proceeding up the line. Or something like that. With all the reactances in the diagram in terms of s-parameter variables I'm having trouble seeing how to go about doing all the polar to rectangular conversions. As I mentioned, a link to a reference with a worked example would be much appreciated if anyone knows of one. Sometimes attempting to learn anything from this particular book feels like pulling teeth, as it often feels as if it were written for hardcore mathematicians rather than students.