Commissariat a L'energie Atomique Et Aux Energies Alternatives

Stmicroelectronics S.a.

Baudouin Martineau

Olivier Richard

Didier Belot

Frédéric Gianesello

Clement Jany

Aurelien Larie

Dominique Morche

Lionel Vogt

Frederic Gianesello

Alexandre Siligaris

José-Luis Gonzalez Jimenez

Jose-Luis Gonzalez Jimenez

Frédéric Hameau

Clément Jany

Cédric Dehos

Cedric Dehos

Aurélien Larie

Frédérìc Gianesello

A system for generating a radio frequency signal phase-locked to a reference signal. Such a system includes a rotary travelling wave oscillator including a conductive ring and a plurality of sustaining amplifying cells electrically connected to the ring; a programmable multiplexer device designed to electrically connect an input port of the system to an amplifying cell that can be selected from the cells of the plurality. The system is designed so that the oscillator generates the locked radio frequency signal when the reference signal is injected at the input port of the system. A phase difference between the radio frequency signal and the reference signal is a function of the amplifying cell to which the input port is electrically connected via the programming of the multiplexer device.

System for generating at least one radio frequency signal phase-locked to a reference signal, corresponding radio frequency transmitter and receiver

A device for receiving and demodulating an amplitude-modulated RF signal, comprising: a first antenna; a first amplifier coupled to the first antenna; a receiving module including: a) a second antenna; b) a second amplifier coupled to the second antenna; c) a phase-shifter coupled to the second amplifier and applying a phase-shift Φ; d) a mixer comprising inputs coupled to the phase-shifter and to the first amplifier, and outputting a product of signals received at the input, and wherein the value of the phase-shift Φ is such that the device performs a demodulation of the RF signal when a wavefront of the RF signal forms, with an axis of alignment of the antennas, an angle α having a particular value a which depends on the phase-shift Φ and on a distance between the antennas.

Device and method for receiving and demodulating an amplitude-modulated RF signal

A radiofrequency transmission/reception integrated circuit includes at least one radiofrequency signal amplifier (PA, LNA), the at least one amplifier being configured, in operational mode, so as to perform a function of amplifying a radiofrequency signal applied at input, wherein the amplifier is configured so as to perform an oscillator function in a self-test mode of the integrated circuit, to generate a radiofrequency signal on at least one of the input or the output of said amplifier. A self-test method for such an integrated circuit is also provided.

Radiofrequency integrated circuit and corresponding test method

A radio wave transceiver system, including: at least one waveguide made of a dielectric material; a transceiver circuit coupled to a first end of each of said at least one waveguide, capable of transmitting and/or of receiving radio waves respectively propagating in said at least one waveguide; and at least one antenna coupled to a second end of said at least one waveguide, capable of transmitting and/or of receiving said waves to/from a non-guided external medium.

Radio transceiver precise time delay measurement system

A system for bidirectional transmission in a plastic waveguide of a plurality of signals, between a first transceiver device and a second transceiver device, the plurality of signals comprising a payload carrier signal and one or more reference signals generated by one or more local oscillators on different frequencies, the first transceiver device being a power radio transceiver device, the second transceiver device being a multisignal transceiver device with no energy consumption which comprises a passive transmitter and a passive receiver.

System for bidirectional transmission of signals in a plastic waveguide

A carrier recovery system for a receiver of a phase-modulated signal N-PSK, the system including a first pre-conditioning circuit of the signal received (S(t)), with the pre-conditioned signal (SP(t)) having a component, non-modulated in phase, at the frequency N&#x192;where &#x192;is the carrier used for the modulation N-PSK, and a carrier regeneration circuit to regenerate two sinusoidal signals in quadrature at the frequency &#x192;, with these signals being phase locked with respect to said non-modulated component in phase of the pre-conditioned signal.

Carrier recovery analog system for a receiver of a N-PSK signal

A millimeter-wave waveguide including at least one strip of a dielectric material having a dielectric constant in the range from 1 to 4, a sheath surrounding the strip, and at least four ribs connecting the strip to the sheath.

Millimeter-wave waveguide

A voltage-controlled oscillator, including a voltage-controlled LC resonator including at least one first output node; an amplifier including at least one first dual-gate MOS transistor including first and second gates, coupling the first output node to a second node of application of a reference potential; and a regulation circuit capable of applying to the second gate of the first transistor a bias voltage variable according to the amplitude of the oscillations of a signal delivered on the first output node of the oscillator.

Voltage-controlled oscillator

Switch comprising at least one PCM portion that can be in a conducting or blocked state depending on the amorphous or crystalline state of the PCM that can change state when it is heated,

Switch with phase change material

A millimeter-wave transmission device including a waveguide made of a material having a dielectric constant in the range from 1 to 4, the waveguide being solid at each of its ends with an electronic unit embedded in the material of the waveguide, the electronic unit including a millimeter wave transceiver circuit, an antenna capable of transmitting and receiving the millimeter waves, a modulation-demodulation circuit, and input-output conductors.

Milimeter-wave transmission device

A multichannel splitter formed from 1 to 2 splitters. An input terminal of a first 1 to 2 splitter defines an input of the multichannel splitter. The 1 to 2 splitters are electrically series-connected. First respective outputs of the 1 to 2 splitters define output terminals of the multichannel splitter.

Radio frequency splitter

A radiofrequency receiver device including: a local oscillator oscillating at an adjustable local frequency; a mixer receiving radiofrequency signals and the output of the local oscillator for the supply of intermediate-frequency signals; a filtering system configured and positioned to filter the signals according to a bandpath with an adjustable frequency bandwidth; and a data detector in the intermediate-frequency signals. It further includes means for adjusting the local frequency of the local oscillator, between minimum and maximum oscillation frequencies, and for adjusting the bandpath of the filtering system, between minimum and maximum frequency bandwidths, wherein the adjusting means are suitable for adjusting the local frequency and the bandpath until the detector detects a predetermined identification code in one of the intermediate-frequency signals.

Radiofrequency receiver device, method for adjusting such a device and corresponding computer program

An amplifier includes at least two amplification stages coupled in parallel. Each amplification stage includes at differential pair of amplifying MOS transistors having gates connected to a first and second input nodes common to amplifying stages, and bulk regions connected to each other but insulated from bulk regions of the amplifying MOS transistors of the other amplification stages. A configuration circuit generates bias voltage for application to the bulk terminals in each amplification stage to set the threshold voltages of the amplifying MOS transistors, and thus configuring the operating range of each amplification stage so that different amplification stages have different operating ranges.

Multiple range RF amplifier

Switch including a terminal of a first type and at least two terminals of a second type, and a number of circuits capable of ensuring exclusive connection of one of the terminals of the second type to the terminal of the first type as a function of a set of control orders wherein the terminal of the first type is connected to a common point by a first circuit; each terminal of the second type is connected to the common point by a second circuit, with each second circuit including a portion that is magnetically coupled to the first circuit, a static switch mounted in parallel with the portion and capable of being controlled in the 'off' state in order to connect the terminal of the first type to the terminal of the second type associated with the second circuit in question.

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Tencin, France

Baudouin Martineau