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Mixer and high gain control amplifier MMICs have been designed for commercial applications in the millimeter frequency range using coplanar waveguide technology. Electromagnetic simulations and modeling technique have allowed to obtain good results in a first pass between 50 and 60 GHz.

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A wide band phase shifter (2.1-6.4 GHz) has been made in the framework of a European program for development of standard MMICs. It makes use of eight switchable cells providing high resolution regardless of process variations and with a large choice in the phase states selection. It is implemented on two separate chips ( for better flexibility) and has demonstrated, with a 7 bits control, less than 1V RMS error, a ± 0.9dB amplitude variation and an I/O VSWR always better than -11dB at the lowest frequency.