Insertion loss and network parameters in the analysis of power filters

dc.contributorAalto Universityen
dc.contributor.authorKostov, Konstantin S.
dc.contributor.authorKyyrä, Jorma J.
dc.contributor.departmentDepartment of Electrical Engineeringen
dc.contributor.departmentSähkötekniikan laitosfi
dc.contributor.schoolFaculty of Electronics, Communications and Automationen
dc.contributor.schoolElektroniikan, tietoliikenteen ja automaation tiedekuntafi
dc.description.abstractThe insertion loss (IL) is regarded as the best interference suppression characteristic of power filters or suppression components. The IL definitions are considered and as an alternative the paper suggests the use of network parameters. It is a known fact that the standard IL measurements do not provide reliable information about the operational performance of a suppressor. This is largely due to the source and load mismatch, which is typical in power lines. Arguments are presented, showing that network parameters allow for more complete and reliable characterization of power filters and components. The IL would not be abandoned, because the network parameters provide enough information to obtain not only the standard IL, but also the IL in a non 50 Ω system. A new treatment of "worst case" or minimum IL is proposed, which is also based on network parameters. Furthermore, input, output, or transfer impedances, simulation models, and other characteristics, can be obtained from the network parameters, but not from the currently published standard IL data.en
dc.publisherHelsinki University of Technologyen
dc.publisherTeknillinen korkeakoulufi
dc.relation.ispartofNordic Workshop on Power and Industrial Electronics (NORPIE/2008), June 9-11, 2008, Espoo, Finlanden
dc.relation.ispartofseriesProceedings of the Nordic Workshop on Power and Industrial Electronics (NORPIE/2008)en
dc.subject.keywordelectromagnetic interferenceen
dc.subject.keywordinterference suppressionen
dc.subject.keywordpower filtersen
dc.subject.keywordscattering parametersen
dc.subject.otherElectrical engineeringen
dc.titleInsertion loss and network parameters in the analysis of power filtersen
dc.typeA4 Artikkeli konferenssijulkaisussafi
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