Microwave Vision

Centre National Detudes Spatiales

Ste D'applications Technologiques De L'imagerie Micro-onde

Office National D'etudes Et De Recherches Aerospatiales

Mvg Industries

Satimo Industries

Ste D'applications Technologiques De L'imagerie Micro Ondes

Societe D'applications Technologiques De L'imagerie Micro Ondes

Ste D'applications Technologies De L'imagerie Micro Ondes

Societe D'applications Technologiques De L'imagerie Micro-onde

Philippe Garreau

Luc Duchesne

Per Iversen

Arnaud Gandois

Ludovic Durand

Patrick Dumon

Marc Le Goff

Virginie Tessier

Per Olav Iversen

Jean-Charles Bolomey

Nicolas Gross

Raphaël Laporte

Stéphane Thiébaut

Juan Carlos Castelli

Nicolas Adnet

Nicolas Robic

Jérôme Drean

Stephane Thiebaut

Raphael Laporte

Jerome Drean

Stéphane THIÉBAUT

The invention relates to a medical imaging system having microwave emitting antennas and antennas for receiving the electromagnetic field, which are arranged around a space for receiving a human tissue medium to be observed, and comprising: an array () of emitting antennas and an array () of receiving antennas, wherein said two arrays () are independent, and motors capable of angularly rotating and of translating the emitting array () and/or the receiving array () relative to the space under observation, in order to enable the scanning thereof.

Medical imaging system having microwave emission/reception

The invention relates to a device for the electromagnetic testing of an object, comprising a network of electromagnetic probes, a structure for supporting the network of probes and a support for supporting the object being tested. According to the invention, the structure is closed in the three dimensions of space all around the support for the object being tested by at least one conductive wall forming a Faraday cage which is fitted on its inner side by anechoic electromagnetic absorbers located in the intervals between the probes.

Device for the electromagnetic testing of an object

The invention relates to a device () for determining at least one characteristic of the electromagnetic radiation of an object being tested, and to a probe network (), characterized in that it comprises a means () for sliding said probe network () on itself with a relative offset between the probe network () and the object being tested, that is higher than the pitch of the probe network () in order to carry out measurements along a plurality of relative positions of the probe network () and the object being tested, and to access specific regions of the object being tested; means are provided for positioning, adjusting and aligning the probe network () relative to the object being tested in order to move towards/come to/fit onto the object being tested, and means are provided for the mechanical scanning of the probe network around or in front of the object being tested in order to carry out measurements along spherical, cylindrical or planar shapes.

Device and method for determining at least one value associated with the electromagnetic radiation of an object being tested

This invention relates to a system for emitting electromagnetic beams, comprising a network of elements for the far-field emission of electromagnetic beams, the signals coming from and/or arriving towards each element weighted by excitation coefficients digitally determined by calculation means. According to the invention, the system comprises: a second separate network of sensors arranged close to the network of radiating elements in order to measure the near field radiated by the elements, means for calculating the far field radiated by the network from the near field actually measured by the sensors, and means for calculating the correction of the excitation coefficients of the elements from the difference between the far field calculated from the measurement of the near field and a pre-determined nominal far field.

System for emitting electromagnetic beams, comprising a network of antennae

A device () for the relative positioning of an electromagnetic probe network () and of an object being tested (). The device includes at least a sliding element () to provide for the relative sliding of the object being tested () or of the electromagnetic probe network (), to move the object being tested () or the probe network () along at least one sliding direction included in a plane of the probe network (), and on which is provided a rotation device () for the relative rotation of the object being tested () and of the probe network () about a main rotation axis perpendicular to the sliding direction.

Determination of at least one value associated with the electromagnetic radiation of an object under test

The invention relates to a device for controlling a material, the device including at least one transmitter for transmitting an electromagnetic signal at a carrier frequency Fp to illuminate the material and one receiver for receiving the electromagnetic signal, wherein the device further includes a first modulator for modulating the electromagnetic signal at a frequency Fm1, the first modulator being arranged, on the signal path, between the transmitter and the material in order to spatially sample the emitted electromagnetic signal; second modulator for modulating the electromagnetic signal at a frequency Fm2, the second modulator being arranged, on the signal path, between the material and the electromagnetic signal receiver in order to spatially sample the electromagnetic signal passed through the material.

Microwave device for controlling material

The invention relates to an antenna that produces a radiation pattern that is axisymmetric about a geometrical axis (X) and exhibits a radiation maximum in a plane perpendicular to the direction of said X axis that includes a feed wire extending along said axis (X) from a first end situated level with a conducting surface forming an earth plane of the antenna to a second end that feeds a set of N radiating strands, N being an integer, characterized in that it also includes at least one earth return rod for the strands, said rod linking one of the radiating strands of the set to the earth plane.

Circularly or linearly polarized antenna

The invention relates to a device for controlling the specific absorption rate of mass-produced radiant objects. The inventive device is characterized in that it comprises: at least one sensor for measuring a power radiated by an object which is located in the zone, and at least one processing unit for analyzing the power thus measured. The aforementioned sensor consist of a waveguide comprising an opening which is disposed opposite the test zone and at least one measuring probe which is disposed inside the waveguide.

Device for controlling the specific absorption rate of mass-produced radiant objects

An apparatus for studying the electromagnetic behavior of an electromagnetic wave-emitting or electromagnetic wave-receiving tool is provided. An anechoic chamber is configured to receive the tool as well as a person handling the tool. At least one analysis antenna is configured to pick-up the electromagnetic waves emitted from or received by the tool. Signals outputted by the analysis antenna are processed, and a radiation diagram associated with the electromagnetic tool is displayed. The radiation diagram is displayed inside the anechoic chamber so that the person handling the electromagnetic tool observes how the handling of the tool affects its electromagnetic behavior.

Anechoic chamber for direct observation of the electromagnetic behavior of a tool

A device determines at least one characteristic of electromagnetic radiation emitted from a test object. A support receives the object. A network of probes is distributed along a substantially circular arc, and the support is disposed in a plane formed by the network of probes or in a plane parallel to the plane formed by the network of probes. The network of probes or the support is pivoted in the plane formed by the network of probes or in the plane parallel to the plane formed by the network of probes about a point located in that plane to vary an angle formed between a given one of the network of probes and the support, and thereby allow measurements to be taken at plural angular positions of the network of probes relative to the test object.

Device and method for determining at least one variable associated with the electromagnetic radiation of an object being tested

Growing community of inventors

Paris, France

Philippe Garreau