Abstract
THIS is an excellent introduction to the comparatively young theory of four-terminal networks, that is, of alternating-current transfer systems of which only the input and output pairs of terminals are accessible for measurements. After a brief outline of network analysis, the author passes in Chapter ii to a thorough theoretical investigation of linear symmetrical four-terminal networks, of which the behaviour for different terminal impedances is examined by means of circle diagrams based on the network parameters. The application in Chapter iii of this theory to the particular case of loss-free systems illuminates the theory through the relative simplicity of the circle diagrams required, while Chapter iv deals with asymmetric linear systems.
Einführung in die Vierpoltheorie der elektrischen Nachrichtentechnik
Von Prof. Dr. R. Feldtkeller. (Physik und Technik der Gegenwart, Abteilung Fernmeldtechnik, herausgegeben. von Prof. Dr. Heinrich Fassbender, Band 2.) Pp. ix + 142. (Leipzig: S. Hirzel, 1937.) 8.80. gold marks.
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Einführung in die Vierpoltheorie der elektrischen Nachrichtentechnik. Nature 144, 311 (1939). https://doi.org/10.1038/144311a0
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DOI: https://doi.org/10.1038/144311a0