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(20,491 posts)ohiosmith
(24,262 posts)geardaddy
(24,926 posts)*clutching pearls*
ohiosmith
(24,262 posts)HappyMe
(20,277 posts)Alert!
ohiosmith
(24,262 posts)MilesColtrane
(18,678 posts)Spock's slide rule?
ohiosmith
(24,262 posts)invented by Phillip H. Smith (19051987), is a graphical aid 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. Use of the Smith chart utility has grown steadily over the years and it is still widely used today, not only as a problem solving aid, but as a graphical demonstrator of how many RF parameters behave at one or more frequencies, an alternative to using tabular information. The Smith chart can be used to represent many parameters including impedances, admittances, reflection coefficients, scattering parameters, noise figure circles, constant gain contours and regions for unconditional stability. The Smith chart is most frequently used at or within the unity radius region. However, the remainder is still mathematically relevant, being used, for example, in oscillator design and stability analysis.
Also known as Spock's slide rule.
HappyMe
(20,277 posts)No need for the xxx explanation!
ohiosmith
(24,262 posts)dimbear
(6,271 posts)Replaced by computer programs............