Some remarks on the design of microstrip to coplanar line transformer

Microstrip to coplanar transformer (MS2CPW) with conductor backed coplanar waveguide (CBCPW) design technique is presented. A various structures of the intermediate section layout have been considered. Transformer was developed using Zeland IE3D and Agilent Momentum electromagnetic simulator. Experimental verification and appraisal of electromagnetic simulations allow finding some essential directives to improve design procedure.