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Deembedding of filters in multiplexers via rational approximation and interpolation

Abstract : In this paper we present a method to recover electrical parameters of filters embedded in a multiplexer for which scattering measurements are given. Unlike other approaches proposed for this problem, this method does not require a priori knowledge of the scattering parameters of the junction. This feature renders the procedure well suited for tuning purposes or for fault diagnosis. Technically the algorithm starts with a rational approximation step, in order to derive a rational representation of certain scattering parameters of the multiplexer. This representation is then used in a second step to identify the electrical model of each filter. This second step relies on a rational interpolation technique used to extract the filter's responses.
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Contributor : Martine Olivi Connect in order to contact the contributor
Submitted on : Monday, July 28, 2014 - 3:26:55 PM
Last modification on : Saturday, December 3, 2022 - 3:56:50 AM
Long-term archiving on: : Tuesday, November 25, 2014 - 7:23:17 PM


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  • HAL Id : hal-01052718, version 1


Fabien Seyfert, Matteo Oldoni, Martine Olivi, Sanda Lefteriu, Damien Pacaud. Deembedding of filters in multiplexers via rational approximation and interpolation. IMS - IEEE International Microwave Symposium, Jun 2014, Tampa Bay, Florida, United States. ⟨hal-01052718⟩



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