Abstract: A method for detecting receivers includes a step of detecting a receiver, in which step a general controller detects an adjustable receiver when a general antenna receives a secondary wave emitted by the adjustable receiver, followed by a reconfiguration step in which the general controller commands a controller of the detected adjustable receiver to switch to an interaction mode in which the impedance of the adjustable receiver is alternated between a first configuration impedance and a second configuration impedance in order to detect other receivers. The reconfiguration step is of a duration that is an order of magnitude higher than the duration of each alternation of the first and second configuration impedances.

Abstract: A radar device comprising a controller module, a radiofrequency module, a plurality of waveguides, a plurality of antenna modules, each antenna module of the plurality of antenna modules having a controllable electromagnetic surface, wherein the controller module is calculating a radar image on the basis of the received data from the radiofrequency modules, antenna parameters applied to each antenna module to tune each controllable electromagnetic surface, and radar parameters.

Abstract: An electromagnetic adjustable element that is adapted to change the manner in which an electromagnetic wave is reflected and/or transmitted and/or radiated by said adjustable element, the adjustable element comprising a first electromagnetic element and a second electromagnetic element, and a switch between them. The switch is a transistor structure including transistors of low power type, lower than 20 dBm.

Abstract: A system for detecting receivers including at least one receiver, a container having a volume for containing the receiver, an antenna suitable for emitting a primary wave in the volume and for receiving a secondary wave emitted by the receiver in the volume in response to reception of the primary wave, and a controller suitable for controlling the emission of the primary wave and for detecting the receiver via the received secondary wave. The system further includes adjustable elements controlled by a control wave, attached to the container and having an impedance that can be modified. Each adjustable element includes a device for recovering energy from the primary wave and/or from the control wave in order to power itself, and a device for receiving the control wave which decodes an adjustment parameter so that the adjustable element controls its impedance.

Abstract: A wave shaping device which comprises a tunable impedance surface and a controller connected to the surface in order to control its impedance. The shaping device further comprises a transmission module for receiving a pilot signal used to control the impedance of the surface.

Abstract: Disclosed is a display device including, from a front face towards a rear face, a panel, a ground plane, and a processing unit connected to the panel and including an antenna for receiving and/or emitting a wave for connection to a wireless network. The display device further includes a plurality of adjustable elements connected to the processing unit, each adjustable element having an impedance which can be modified by the processing unit in order to change the manner in which the wave is reflected and/or transmitted by the adjustable elements, these adjustable elements being located on the rear side of the ground plane.

Abstract: Methods and systems for shaping an electromagnetic wavefront are disclosed. A disclosed method includes tuning a tunable surface in an electromagnetic cavity and receiving the electromagnetic wavefront in the electromagnetic cavity. The electromagnetic wavefront includes a first wave defined by a first wavelength and a second wave defined by a second wavelength. The first wave and the second wave have a shared phase and a shared beam direction in the electromagnetic wavefront. The method further includes reflecting the electromagnetic wavefront within the cavity to repeatedly interact with the tunable surface, and transmitting, after reflecting the electromagnetic wavefront within the cavity, the electromagnetic wavefront from the electromagnetic cavity as a shaped electromagnetic wavefront. The first wave and the second wave have at least one of a difference in phase or a difference in beam direction in the shaped electromagnetic wavefront.

Abstract: A body part for a motorized land vehicle is provided. The body part includes at least one wall made of a plastic material and including at least one housing forming a cavity for electromagnetic waves, said housing includes: at least one transceiver for transmitting and/or receiving an electromagnetic wave in said housing; at least one adaptable surface capable of reflecting the electromagnetic wave transmitted by the transceiver in a given direction (in a controlled manner) and, conversely, capable of reflecting the electromagnetic wave coming from the exterior of the housing toward the transceiver.

Abstract: Method for determining a characteristic of detection and/or identity information and/or location information of a receiver, wherein: a) a primary wave is emitted by an antenna, b) adjustable elements are controlled with a plurality of sets of parameters, to modify the propagation of a primary wave and/or of a secondary wave coming from the receiver, and c) signals received by the antenna are saved, and d) the characteristic of the receiver in the medium is determined based on the signals received for each set of parameters.

Abstract: Antenna for transmitting and/or receiving an electromagnetic wave, including a radiating element, a tunable surface of variable impedance, and a controller connected to the tunable surface and which controls it based on a desired direction of the electromagnetic wave. The radiating element and the tunable surface are integrated inside a housing, the housing forming a cavity for the waves and including an opening for the electromagnetic wave to be transmitted to the outside.

Abstract: A wave shaping device which comprises a tunable impedance surface and a controller connected to the surface in order to control its impedance. The shaping device further comprises a transmission module for receiving a pilot signal used to control the impedance of the surface.

Abstract: A communication network includes an access point, a control unit in communication with the access point, a wave shaping device in communication with the control unit, and a wireless communication device. The control unit determines parameters of the wave shaping device, the parameters being search parameters if the control unit does not receive a pilot signal, and optimization parameters if the control unit receives a pilot signal.

Abstract: A wave shaping device which comprises a tunable impedance surface and a controller connected to the surface in order to control its impedance. The shaping device further comprises a transmission module for receiving a pilot signal used to control the impedance of the surface.

Abstract: A microwave oven comprising a cavity in which a material can be placed for heating and a magnetron for generating a microwave. The microwave oven further comprises an electromagnetic element adapted to interact with microwaves into the cavity and a control unit that provides a control signal to the electromagnetic element for modifying an impedance of the electromagnetic element during time of heating.

Abstract: A waveform shaping device that includes an adaptable surface, a controller, and a receiving device which measures a secondary wave following the reception of a primary wave by a receiver, the primary wave having been transmitted by a transmitter. Based on the measurement of the secondary wave, the controller determines an estimated value for optimization of the adaptable surface, without any connection to the receiver.

Abstract: The invention relates to a method and a device for generating high-power electromagnetic radiation. A transmission antenna of a transmission device capable of emitting an electromagnetic transmission wave is arranged in a reverberation cavity comprising openings. The method includes determining an electromagnetic temporal waveform F focused in a desired direction of focus outside the cavity; and emitting an electromagnetic transmission wave E having temporal waveform F into the cavity using the transmission device.

Abstract: A filter device includes a transmission line formed by an electrically conducting strip printed on a surface of an electrically insulating substrate, the conducting strip having two ends respectively forming the two sole input and output connection ports of the filter device, and a plurality of resonators, each resonator including an electrically conducting strip printed on the surface of the substrate. The conducting strip of each resonator has a first end coupled to the transmission line and at least one second end that is free or connected to a ground so as to create an effective fundamental resonant wavelength specific to each resonator. For each pair of neighboring resonators of the plurality of resonators, the distance between the first ends of the two neighboring resonators is less than one tenth of the smallest effective fundamental resonant wavelength of the plurality of resonators.

Abstract: The invention relates to a method and a device for generating high-power electromagnetic radiation. A transmission antenna of a transmission device capable of emitting an electromagnetic transmission wave is arranged in a reverberation cavity comprising openings. The method includes determining an electromagnetic temporal waveform F focused in a desired direction of focus outside the cavity; and emitting an electromagnetic transmission wave E having temporal waveform F into the cavity using the transmission device.

Abstract: A microwave oven comprising a cavity in which a material can be placed for heating and a magnetron for generating a microwave. The microwave oven further comprises an electromagnetic element adapted to interact with microwaves into the cavity and a control unit that provides a control signal to the electromagnetic element for modifying an impedance of the electromagnetic element during time of heating.

Abstract: A device (10) for receiving and/or emitting an electromagnetic wave, comprising a medium (11) of dielectric material, a plurality of passive resonant elements (12) incorporated inside said medium, the plurality of passive resonant elements (12) comprising a frequency band-gap, two neighbor passive resonant elements belonging to the plurality being spaced apart from each other of a first distance lower than ?/4, and at least one active resonant element (13) incorporated inside said plurality, said active resonant element (13) having a second structure different from a first structure of the passive resonant elements (12), so that said active resonant element (13) has at least a second resonance frequency comprised inside the frequency band-gap of said plurality of passive elements (12).