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One final word on the matter. The December 1958 edition of the IRE Proceedings on Circuit Theory is a treasure house of filter design information (and other subjects too) for anyone wanting more than a cookbook approach on the subject. I was fortunate enough to find a bound copy of all the 1958...
I looked at Saal and Ulbrich's paper from the Sep 1958 IRE Transactions today. They have every thing I want detailed in their work. They use the word "tedious" in decribing the necessary calculations. And after looking at their work, a more appropriate adjective might fit, such as "squirly"...
Checked out the EDN article. It appears to be more of a sensitivity analysis approach in the design of filters--comparing Elliptic to Chebshev. Good piece however; but not what I'm looking for. Thanks for considering it in any case.
What I did last night was something which I should have done...
I have copies of the early papers of Foster, Brune, and some others. I do not have, however, any copies of Cauer's. I guess it's off to the university library for me!
Thanks
I have used Darlington's Algorithm for generating the Poles and Zeros for Elliptic Filters. Nonetheless, obtaining the LP coefficients from Poles and Zeros for Elliptic filters is another matter entirely. Zverev has a numerical example for N=3 for K²=1 and K²=∞. But to date, this is the only...
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