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TRANSIENT ANALYSIS OF LOSSY NONUNIFORM TRANSMISSION LINES USING A TIME-STEP INTEGRATION METHOD

This paper presents an effective numerical method for the transient analysis of lossy transmission lines. With the discretization of the spatial variation of voltages and currents along the transmission lines while remaining the temporal derivatives unchanged, a semi- discrete model is derived from the telegrapher's equations. The time- step integration method is utilized to derive the recursive scheme of time advancing. A large time step can be used in the computation, meanwhile, its accuracy is guaranteed. Numerical examples are presented to demonstrate the stability and accuracy of the proposed method.