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Magnitude of Cross-Coupling Noise in Digital Multiwire Transmission Lines
November 1974 (vol. 23 no. 11)
pp. 1122-1132
S. Matsushita, Computer Division, Tokyo Shibaura Electric Company, Ltd.
Characteristics of a multiwire transmission line with inhomogeneous medium, as used for wiring in digital equipment, are investigated with respect to the cross-coupling noise, or cral. Formulas of crosstalk magnitudes are derived. Then they are simplifled for two specific kinds of transmission lines, i. e., a kind of strip lines and a line with equalized coupling. They are ready for straight-forward calculation by a computer, and agree with experimental results very well. A special kind of norm is introduced to simplify matrix calculations into scalar approximations to estimate a guaranteed upper bound of crosstalk voltages in the general case. It is found useful as a criterion in the first step of design considerations.
Index Terms:
Cross coupling, crosstalk, eigenvectors and eigen-values of a matrix, inhomogeneous medium, multiwire transmission line, noise in digital systems, norm of a matrix, propagation modes.
Citation:
S. Matsushita, T. Moto-Oka, "Magnitude of Cross-Coupling Noise in Digital Multiwire Transmission Lines," IEEE Transactions on Computers, vol. 23, no. 11, pp. 1122-1132, Nov. 1974, doi:10.1109/T-C.1974.223819
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