Microwave Characterization Center

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

Université Sciences Technologies Lille

Matthieu Werquin

Nicolas Vellas

Christophe Gaquiere

Sylvain Jonniau

Nicolas Thouvenin

Simon Vandenbrouck

Christophe Gaquière

Frederic Bue-Erkmen

Hadrien Theveneau

Jean-Christophe Joly

Florent Clemence

Benjamin Choteau

Frédéric Bue-Erkmen

Christophe GAQUIÈRE

The present invention relates to an imaging device () comprising: In particular, the reflector means () are mounted to move in the detection zone of each microwave sensor () in such a manner as to move said detection zone by moving the reflector means (). The invention also provides a corresponding microwave imaging method.

Imaging device and corresponding imaging method

A spatial power combiner includes several inputs to which are respectively linked a plurality of transmission lines, and an output. A body defines a cavity and the plurality of transmission lines pass longitudinally through the cavity and are disposed around an absorbent member also extending longitudinally in the cavity. A power amplification set includes the spatial power combiner and an amplification structure at the input of the spatial power combiner.

Spatial power combiner

A system for measuring the attenuation of electromagnetic shielding of an infrastructure as a function of the frequency, including a transmitter of a white noise signal with a constant power over a frequency band between a minimum frequency and a maximum frequency, a signal receiver, the transmitter and the receiver being capable of sending a signal and receiving a signal across the infrastructure, the receiver including a filter module capable of applying sliding filter on the received signal between the minimum frequency and the maximum frequency, and a double synchronous detection module capable of double synchronous detection on a signal output by the filter module.

Shielding attenuation measurement

The invention relates to a portable radiometric imaging device and to a corresponding method, finding a particular application in detecting articles carried by passengers or contained in baggage, for example in airports and train stations. The device includes a plurality of receiver antennas for picking up electromagnetic radiation from a plurality of parts of a body or an article and converting them into a plurality of signals representative of said radiation, a plurality of receiver modules associated with the antennas for receiving the signals representative of the radiation and converting them into a plurality of electrical signals, and a digital processor unit for responding to the electrical signals to create one or more digital signals representative of the electromagnetic radiation for display on a display as an image of the body or article. A correlator module is provided for correlating the electrical signals in order to form a signal representative of the electromagnetic radiation from the intersection of the two parts of the body or article.

Portable radiometric imaging device and a corresponding imaging method

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Lesquin, France

Matthieu Werquin