Analysis of coupled coplanar waveguides with V-shaped conductor backing using conformal-mapping method

The V-shaped microshield coupled parallel coplanar waveguides. a new type o f the coupled parallel coplanar waveguide (CP CPW). is proposed. Closed-for m expressions are presented for calculating the quasistatic parameters of t his coupled structure bq using conformal-mapping techniques. The effect of the V-shaped conductor backing on the coupling between CPWs is also discuss ed. Comparisons are made between the present numerical results and the spec tral-domain method results available in the literature for a conventional C P CPW. In addition, the coupling coefficient of the present coupled CPW is shown to be significantly lower than that of a coupled parallel CPW.