Abstract: Electronic component comprising at least one micro-electromechanical capacitor with adjustable capacitance comprising two electrodes free to move with respect to each other, and a control circuit (30) comprising measurement means (32) to measure the capacitance of the capacitor, means (35) of determining a capacitance difference between the measured capacitance of the capacitor and a set capacitance value, means (35 to 38) for injecting an electrical charge in a control electrode so as to create an electrostatic force capable of moving one of the two electrodes with respect to the other electrode and thus adjusting the capacitance of the capacitor, the injected electrical charge being determined as a function of the capacitance difference. This component is suitable for making an adjustable delay line, an adjustable quarter wave impedance transformer or for measuring the voltage, the power or the average intensity of an electrical signal.

Abstract: Electronic component comprising at least one micro-electromechanical capacitor with adjustable capacitance comprising two electrodes free to move with respect to each other, and a control circuit (30) comprising measurement means (32) to measure the capacitance of the capacitor, means (35) of determining a capacitance difference between the measured capacitance of the capacitor and a set capacitance value, means (35 to 38) for injecting an electrical charge in a control electrode so as to create an electrostatic force capable of moving one of the two electrodes with respect to the other electrode and thus adjusting the capacitance of the capacitor, the injected electrical charge being determined as a function of the capacitance difference. This component is suitable for making an adjustable delay line, an adjustable quarter wave impedance transformer or for measuring the voltage, the power or the average intensity of an electrical signal.

Abstract: The present device comprises a power divider network, to which a signal to be amplified is applied, for distributing the power of the signal among several amplifying channels, one amplifier per amplifying channel for amplifying the power-divided signal, and a power combiner circuit for combining the amplified signals at the output of each channel into a single signal, the RF power desired at the output of the device determining the number of amplified signals to be combined, the amplifier of each channel comprising an integrated circuit including a controllable output transistor for deactivating the amplifier, the power combiner circuit comprising a quarter wave impedance transformer circuit for each channel connected to a common junction node coupled to the device output.

Abstract: The present device comprises a power divider network (1′), to which a signal (E) to be amplified is applied, for distributing the power of said signal among several amplifying channels, one amplifier (22) per amplifying channel for amplifying the power-divided signal, and a power combiner circuit (5) for combining the amplified signals at the output of each channel into a single signal, the RF power desired at the output of the device determining the number of amplified signals to be combined, the amplifier (22) of each channel comprising an integrated circuit including a controllable output transistor for deactivating the amplifier, the power combiner circuit (5) comprising a quarter wave impedance transformer circuit (51) for each channel connected to a common junction node coupled to the device output (S).

Abstract: The instant invention relates to a method and an arrangement for optical information transmission via satellites by means of broadband optical modulation and reception technology. As a rule, the arrangement is realized in optical satellite terminals, which have optical units, a laser unit, control and supply as well as monitoring units. In the exemplary embodiment, these terminals are designed for a data rate of 1.5 Gbit/s and a transmission distance of more than 1,200 km, while having a weight of less than 8 kg.