The Smith chart can be used to simultaneously display multiple parameters including impedances, admittances, reflection coefficients, \displaystyle is constant), the complex reflection coefficient of a standing wave varies according to the position on the line. The Smith chart is used to assist in solving problems with transmission lines and matching circuits.
These are often know as the Z, Y and YZ Smith charts respectively. Smith (1905–1987) and independently by Mizuhashi Tosaku, is a graphical calculator or nomogram designed for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission lines and matching circuits. The Smith chart is plotted on the complex reflection coefficient plane in two dimensions and is scaled in normalised impedence, normalised admittance or both, using different colors to distinguish between them. Short description: Graphical calculator or nomogram designed for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission lines and matching circuits
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