impedance inverter filter
what's exactly the topic you want to discuss?
I' don't have a copy of Vizmuller's book.
I'have no doubt about the Smith-Chart (S-C) validity in every condition.
But some cases or application may be difficult to plot.
Are you writing about a filter or the infinitesimal lenght section of a transission line?
For example, if you are writing about a filter, the "rotations" due to each Cap and Ind are easy plottable but... at fixed frequency and omitting dissipative losses.
Also i agree with you that lumped components should be shorter than Lambda/4.
If you are writing about the infinitesimal transmisison line lenght section, modelled as C-shunt, L-series, ladder network, you may plot on S-C as a Cshunt of a given susceptance, followed by Lseries of a reactance that the end point come back to the center. This operation should be re-itered "infinitely" until you'll reach the load. Note that you are everytime on center. This mean that your signal is flowing on matched line.
Finally if you are a novice i suggest you Agilent AN-95
Bye