Double and triple balanced wideband mixers integrated in GaAs technology

In this paper, two wideband double and triple balanced mixers integrated in GaAs technology are presented. Diodes quads in such structures are driven by low loss baluns. These baluns are designed thanks to double-inductances connected as Marchand coupler. In the mid-band, a conversion loss of 10dB has been measured for the two mixers. The double and triple balanced mixers have a LO/IF isolations of 25dB and 31.5dB respectively. Good agreement are observed between simulations and measurements.