LossyFilters software

Authors

J.M.Rius, J.Mateu, J.M.Tamayo, C.Collado, A. Padilla and J.O'Callaghan.
Dpt. Signal Theory and Communications, Universitat Politècnica de Catalunya (UPC),
Copyright: ©2009 Universitat Politècnica de Catalunya (UPC).

Contact: lossyfilters@tsc.upc.edu

Acknowledgement:

The development of this software was partially supported by The European Space Agency (ESA) under contract 21398/08/NL/GLC and Thales Alenia Space España (TAS-E), under contract UPC-C7767.

Contributions to the definition of the software functionality and testing have been made by Christoph Ernst and other ESA-ESTEC personnel, and Santiago Sobrino and Luis Roglá from TAS-E.

Software description

The LossyFilters software package has been written to synthesize filters following various forms of classical (no-loss considered in the synthesis), pre-distortion and prescribed insertion loss synthesis. This software obtains the coupling matrix of several network topologies for a given response and allows performing rotations on them to find the desired topology. Additionally, the software allows to evaluate the effect of loss in the networks resulting from the synthesis, even in those cases where the synthesis results in an ideal lossless network (i.e., classical and pre-distortion synthesis).

Help pages

1. Main window
2. Parameter edit window
3. [S] Parameter plots
4. Coupling matrix window:
   1. Matrix Editor Window
   2. Error in [S] parameters after Coupling Matrix rotations