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The analysis of n-coupled transmission lines with nonuniform cross-section is often necessary in the design and simulation of high-speed integrated circuits. A new modal analysis technique is presented, illustrating how a 2n-port coupled nonuniform line structure can be broken down into a set of n uncoupled 2-port nonuniform lines. Modal propagation parameters and modal transformation matrices are retrieved from the entries of the ABCD-matrix representation of the n-coupled line structure. An application concerning a tapered transmission-line system typically found in chip-carrier interconnections is provided as an example. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 43: 186–189, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20415 [ABSTRACT FROM AUTHOR]

In this paper, an efficient numerical simulation technique is introduced to extract the propagation characteristics of interconnects over lossy substrate structures. This approach is based on a compact-form FDFD method in conjunction with the two-step Lanczos (TSL) technique. The efficiency and accuracy of the algorithm are demonstrated through the simulation of several lossy transmission-line structures. [ABSTRACT FROM AUTHOR]

In this paper, the simulation of general frequency-dependent magnetoelectric material properties in time-domain TLM is described. The formulation is developed from Maxwell's equations and the constitutive relations using bilinear 𝒵-transform methods leading to a general Padé system. The approach is applicable to all frequency-dependent linear materials including those displaying anisotropic and bianisotropic behaviour. The method is validated by the example of a chiral slab having an analytic solution. Copyright © 2001 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]