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Date: 09/03/02 at 5:56 PM
Posted by: Sergey Karavashkin
E-mail: selflab@go.com

Basing on the original relationship of the Dynamical ElectroMechanical Analogy DEMA and original exact analytical solutions for a lumped mechanical elastic line as an analogue, it is studied, how the load resistance effects on the amplitude-frequency and phase-frequency characteristics of mismatched finite ladder filters. It is shown that in filters of such type the indicated characteristics have a brightly expressed resonance form and essentially transform in the lower and medial domains of the pass band, changing insufficiently in the vicinity of cutoff frequency. It disables the conventional method to determine the total phase delay and the ladder filter transmission coefficient and requires finding the exact analytical solutions by way of presented method. The obtained calculated regularities well agree with the experimental results for similar-parameters ladder filters. The obtained results can be extended to essentially more complicated ladder-filter circuits.

Our report on theoretical and experimental investigation you can find on

http://angelfire.lycos.com/la3/selftrans/v2_1/load35/load35.html

The opening opportunities are really huge. With the more interest I would like to hear your impression on these results.

Thank you for expressing your opinion, and please double your postings to my e-address selflab@go.com

Sergey.

Follow Ups:

  Re: New opportunities to calculate mismatched filters Citizen   Posted at: 09/04/02 (1)

  Re: New opportunities to calculate mismatched filters Sergey Karavashkin   Posted at: 09/09/02 (0)

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