Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Be Spoon

Frederic Hameau

Laurent Ouvry

Gilles Masson

Alexandre Siligaris

Clement Jany

Francois Dehmas

Jose-Luis Gonzalez Jimenez

Tien-Tu Vo

Venceslass Rat

Device for adjusting the locking of an injection locked frequency multiplier, including:

Device for adjusting the locking of an injection locked frequency multiplier

A frequency synthesis device with high multiplication rank, including a base frequency generator generating two first base signals of square shape of same frequency and opposite to each other, a first synthesis stage including two first switching power supply oscillators, of which the power supplies are respectively switched by the two first base signals, a second synthesis stage including a second switching power supply oscillator of which the supply is switched by a combination of the output signals of the two first oscillators, the output of the second switching power supply oscillator being filtered by a frequency discriminator circuit realized with an injection locked oscillator.

Frequency synthesis device with high multiplication rank

An impulse UWB signal multi-antenna receiver with an RF front-end shared between the various antennas. The receiver includes a code multiplexing stage upstream of the RF front-end, and a code demultiplexing stage downstream of this front-end. The codes used for multiplexing and demultiplexing are orthogonal codes with timing a sub-multiple of the chip timing of the code used at transmission for modulation of the impulse UWB signal.

Multi-antenna impulse UWB receiver

A UWB impulse receiver including an RF stage followed by a baseband processing stage. The baseband processing stage includes a Rake filter including a plurality of time fingers, each finger including an integrator of the baseband signal during an acquisition window, a control module, and a detection module estimating the received symbols from the integration results. During a synchronization phase, the control module drives respective positions of the acquisition windows associated with the different fingers, to scan at a reception interval, the RF stage only operating, in a course of the synchronization phase, during the plurality of acquisition windows.

Intermittent UWB receiver

A pulsed multi-channel UWB receiver. The receiver includes a first stage translating a received signal into baseband or at an intermediate frequency, a second stage carrying out quadrature mixing on the in-phase and quadrature channels of the first stage, a third stage carrying out an integration on a time window of the signals from the second stage, and a fourth stage carrying out a combination of the integration results from the third stage to provide the real part and the imaginary part of the modulation symbol. The receiver is configurable according to the receiving channel and processing type selected.

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Grenoble, France

Frederic Hameau