Thomson-csf

Claude Van Kerrebroeck

Andre Bensussan

Philippe Legendre

Jean-Claude Curtinot

Patrice Birot

A mixer transistor of the MESFET type comprising an emitter transistor connected to the drain or source electrode of the MESFET transistor for supplying an intermediate frequency. A local oscillator signal is applied to the gate of the MESFET transistor. A filter is connected to the drain or source electrode of the MESFET transistor through which the signal resulting from the mixing is obtained.

Transistor mixer for ultra-high frequency transmitters

A device for measuring the power in a microwave transmission and for providing a measuring port at the output of a microwave signal generator or transmitter. First and second quarter wavelength transmission line sections, coupled in series with one another and having characteristic impedances Z.sub.2 and Z.sub.1 respectively, where Z.sub.2 &gt;&gt;Z.sub.1, are coupled at the first section to a predetermined point on a transmission line to be monitored. A port at the free end of the second section allows for the connection of two independent measuring circuits to the transmission line.

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Paris, France

Claude Van Kerrebroeck