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An inhomogeneous, multidielectric-layered cylindrical stripline using TEM-model approximation is analyzed. A simple, closed-form expression for the characteristic impedance of an inhomogenous cylindrical stripline is derived. Numerical results on the characteristic impedance are compared with the results obtained by Wang , and also with the results obtained by the conformal transformation . Extensive data on the impedances of inhomogeneous cylindrical stripline are also presented.