Quasi-TEM analysis of broadside-coupled V-shaped microshield coplanar waveguides

A new type of broadside-coupled CPWs (BC CPWs) is proposed using a V-shaped microshield CPW. Closed-form expressions are presented for calculating the quasistatic parameters of this coupled structure by using conformal mappin g techniques. The effect of the V-shaped conductor backing on the quasistat ic parameters and the coupling between CPWs are also discussed. Comparisons are made between the present numerical results and the results available i n the literature for general BC CPWs. The coupling coefficient of the prese nt BC CPWs is shown to be significantly lower than that of general BC CPWs. (C) 2000 Wiley & Sons, Inc.