Thales

Bruno Louis

Vincent Petit

Rémi Corbiere

Christian Renard

Vincent Frédéric François Petit

Remi Corbiere

Arnaud Meyer

Rémi Luc Pierre Corbiere

Christine Le Borgne

Laurent Fedorowicz

Patricia Desgreys

Hervé Petit

Rémi Corbière

A transceiver device and associated antenna are disclosed. In one aspect, the transceiver device combines first and second transceiver modules with a transceiver capability including a substantially planar radiating element and including a central point. Each transceiver module is a transceiver module coupled with the transceiver capability so as to excite a pair of excitation points of the radiating element, the excitation points of one pair being arranged symmetrically relative to the central point of the radiating element. The first and second transceiver modules respectively excite a first pair of excitation points arranged in a first direction of the radiating element and a second pair of excitation points arranged in a second direction of the radiating element, the first and second directions being mutually orthogonal.

Transceiver device and associated antenna

Sample-and-hold device for an electrical signal including an input module having two inputs, including a first switching block including two input switches, each input of the input module being connected at the input of one of the input switches, the input module being connected at the input of a first track-and-hold module with two inputs and two outputs, so as to alternately convey the signal from one of the two inputs to one of the two inputs of the first track-and-hold module; the device including a second track-and-hold module connected in parallel with the first track-and-hold module, these track-and-hold modules connected at the output of the first switching block, and an output module including a second switching block including two output switches, the outputs of the first and second track-and-hold modules being connected to the inputs of the output switches, to time interleave the output signals of the track-and-hold modules.

Sample-and-hold circuit for an electrical signal

A differential amplifier including an input of a balanced type relative to a reference potential; a balanced output; first and second bipolar transistors mounted in common emitter configuration, emitters of the first and second transistors linked by two feedback impedances in series; and a perfect current generator, wherein an impedance Zat the terminals of the current generator is connected between a common point of the two feedback impedances and the reference potential, the input is connected to a base of the first transistor, a base of the second transistor is linked to the reference potential to form, with a base of the first transistor, the unbalanced input, the balanced output is produced by collectors of the first and second transistors through an impedance matching stage of the output, a correction feedback impedance Z, wherein Z=2&#xb7;Zg, connects the collector of the second transistor and the base of the first transistor.

Unbalanced/balanced conversion differential amplifier

A circuit for power amplification of an input signal includes an input stage and an output stage, the said input stage including: a drive means incorporating a so-called main drive transistor, and a first so-called main input transistor able to receive the input signal, and mounted as a current mirror with the main drive transistor The first main input transistor is coupled to the output stage via a second so-called main input transistor incorporated into the input stage and controlled by the drive means, the first and second main input transistors being coupled together and with the earth according to a structure of Darlington type by way of a resonant circuit

Circuit for power amplification of an input signal and signal emission system incorporating such a circuit

A signal power control device comprises two amplification channels. A first amplification channel comprises a first transconductance amplifier and a second amplification channel comprises an attenuator mounted in series with a second transconductance amplifier. Gain adjustment means allow the respective gains of the first and the second amplifier to be controlled independently, according to laws, ensuring optimum output dynamics across the entire gain range of the power control device.

Growing community of inventors

Elancourt, France

Bruno Louis