Is Foster's reactance theorem valid for two port networks?

04 December 2019 1 8K Report

The theorem states that the reactance of a passive, lossless two-terminal (one-port) network always strictly monotonically increases with frequency. Can this theorem be extended to two port circuit parameters like mutual impedance etc.?

Cristian Ramos-Vera

https://pdfs.semanticscholar.org/6e6f/b6ea2338a04308f15e9185c7f53a2e6e8f08.pdf

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