Size-reduction techniques for CPW and ACPS structures

In coplanar-waveguide technology, there is a possibility of locating shunt and series matching stubs inside the center conductor of the transmission l ine. This principle can be used to reduce of the dimensions of microwave co mponents such as monolithic microwave integrated circuits. This paper discu sses the concept and presents the design of a reduced-size Wilkinson divide r based on the realization of short-circuit series stubs in the signal cond uctor of an asymmetric coplanar stripline.