Power system harmonics and passive filter designs по Das, J. C. 1934-

The circuits and filters handbook passive, active, and digital filters

Available for University of the Philippines Diliman via Taylor & Francis. Click here to access
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The circuits and filters handbook passive, active, and digital filters

Ridge waveguides and passive microwave components по Helszajn, J.

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Advanced electromagnetic analysis of passive and active planar structures по Rozzi, T., Farina, Marco Ph.D

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Microwave planar passive circuits and filters по Helszajn, J. (Joseph)

Active and passive analog filter design an introduction по Huelsman, Lawrence P.