Coplanar waveguides nowadays are successfully used to feed printed antennas
. This technique is very interesting for antenna arrays. However, the compl
ete system involves the association of several microwave functions, essenti
ally power divisions and phase shifts, which are easier to implement in mic
rostrip technology than in CPW technology. In older to match these requirem
ents, this paper presents some compact and easy to realize microstrip/CPW t
ransitions. (C) 1999 John Wiley & Sons, Inc.