Abstract

ABSTRACTThis article presents a method to extract the elements of the electrical equivalent circuit model CMOS pads using two uniform transmission lines fabricated on a lossy Si substrate. The lengths of the uniform transmission lines are different, while its characteristic impedances are equal and can be of an arbitrary value. The proposed method is useful for modeling CMOS pads that can be represented by symmetrical and reciprocal ABCD matrices, denoted as [Mpad]. Then a T‐network is used to represent the CMOS pad and its elements are determined converting [Mpad] into a Z‐parameters matrix. Experimental data from 0.4–20 GHz show a high correlation with theoretical data. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:3033–3037, 2013

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