CPW MMIC power amplifier design for flip-chip packaged power amplifiers

There has been considerable interest in and development of MMIC power amplifiers for sub-miniature packaging using flip chip technology combined with CPW layout technologies. A new approach is developed to synthesis both the input/output power combining and impedance matching in a coplanar waveguide (CPW) MMIC power amplifier at 14 GHz. We will then compare at selected band frequencies the output power gain and stability with those measured for a fabricated MMIC device of well known properties in order to validate the problem presented. Performance characteristics of this MMIC amplifier are compared with those of an identical simulated structure having an air bridged CPW realization.