Multi-Port NonLinearities in Wave Digital Structures

Alberto Bernardini, Kurt J. Werner, Augusto Sarti, Julius O. Smith

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Citations (Scopus)


Wave Digital Structures (WDS), with their inherent stability and robustness, would be particularly suitable for nonlinear (NL) circuit modeling in Virtual Analog applications, if it were possible for them to accommodate multi-port nonlinearities. In this work we present a method for modeling a rather general class of multi-port NL elements in the WD domain, which are obtained as the interconnection of linear and NL resistive bipoles. The method is based on a Piece-Wise Linear approximation of the individual nonlinearities that constitute the multi-port element. This method advances the state of the art as it enables the modeling of arbitrary interconnections between outer ports of the nonlinearity and individual ports of the local NL bipoles. As an example of application of the method, we show a WD implementation of a transformer-less ring modulator.
Original languageEnglish
Title of host publicationProceedings of the IEEE International Symposium on Signals, Circuits, and Systems (ISSCS)
Place of PublicationIași, Romania
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Print)978-1-4673-7488-0
Publication statusPublished - 17 Aug 2015
Externally publishedYes
EventIEEE International Symposium on Signals, Circuits, and Systems - Technical University, Iași, Iași, Romania
Duration: 09 Jul 201510 Jul 2015
Conference number: 35049


ConferenceIEEE International Symposium on Signals, Circuits, and Systems
Abbreviated titleISSCS
Internet address


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