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IBM Journal of Research and Development  
Volume 25, Number 1, Page 25 (1981)
Network Problem Determination
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Coupled Lossy Transmission Line Characterization and Simulation

by A. J. Gruodis, C. S. Chang
It has been shown that the frequency domain solution of the coupled lossy transmission line differential equations has a similar appearance to that of the single line. The frequency-dependent n × n characteristic admittance matrix Y0 and propagation matrix Γ can be obtained from network analyzer insertion loss data treating the coupled transmission lines as a 2n-port network. This paper develops a transient simulation technique for coupled lossy transmission lines based on frequency-dependent Y0 and Γ data. Simulation results agree very well with transient measurements.
Related Subjects: Analytical models; Integrated circuit design; Models and modeling; Packaging