Radiofrequency frequency multiplier comprising an automatic level control cicuit

Multiplicateur de fréquence radio comportant un circuit de commande automatique de niveau

Radiofrequenzvervielfachen mit selbsttätiger Pegelsteuerungsschaltung

Abstract

Radiofrequency frequency multiplier comprising an automatic level control circuit consisting of a microwave MESFET (TI) used as an oscillator signal distorter amplifier followed by a band-pass filter (FPB) tuned to the desired harmonic. The power of the harmonic is stabilized by means of a control circuit (CONTR) placed between the gate (G) and drain (D) terminals of the MESFET. Said control circuit operates as a feedforward controller varying the polarization voltage V DS of the MESFET with the variation in the power level of the oscillator signal in accordance with a law which holds constant the power transferred from the MESFET to the selected output harmonic.

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