Abstract: Array antenna cell comprising a semiconductor substrate; a first polarizer located on a first side of the semiconductor substrate; a second polarizer located on a second side of the semiconductor substrate, opposite to the first side; and at least one radiating element interposed between the semiconductor substrate and the second polarizer, said at least one radiating element being generally ring-shaped.

Abstract: The present description concerns an antenna comprising: an amplifier array comprising a plurality of first elementary cells; a transmitarray comprising a plurality of second elementary cells; and at least one source, wherein said at least one source is configured to irradiate, or to be irradiated by, the transmitarray, and the amplifier array is configured to irradiate and to be irradiated by the transmitarray.

Abstract: A transmit-array and/or reflect-array antenna, configured to operation in sub-terahertz frequency bands and its manufacturing method. The antenna may include a phase shift unit cell array for a transmit-array antenna having a first substrate on which is fixed by pieces, or equivalently by tiles, a second substrate in which the pieces or tiles have been cut. Thus, the flatness stresses of the assembly surfaces are relaxed, and/or the risk of substrates breaking during their handling is decreased.

Abstract: A phased array reconfigurable antenna, intended to operate in sub-terahertz frequency bands, and more specifically, a tuneable unit cell array for a reconfigurable antenna and its manufacturing method. The radiating element array excited by controllable phase-shift signals (in a set of discrete values) includes a first molten silica-or quartz-based substrate, at least one pad coming from a cutting in a second molten silica-or quartz-based substrate, each pad being fixed to the first substrate to form a tuneable unit cell of the array, each cell including at least one phase change material switch. The antenna has application in medical imaging and industrial control, Earth and deep space observation, and for radars and broadband telecommunication systems.

Abstract: The present description concerns a transmitarray antenna cell (105) comprising a semiconductor substrate (201); a first rectilinear polarizer (207a), located on the side of a first surface (201a) of the semiconductor substrate; a second rectilinear polarizer (207b), located on the side of a second surface (201b) of the semiconductor substrate opposite to the first surface and orthogonal to the first polarizer; and at least one radiating element (203-1, 203-2 interposed between the second surface (201b) of the semiconductor substrate and the second polarizer (207b), said at least one radiating element being adapted to switching between at least two phase states.

Abstract: The present description concerns an antenna system comprising a transmitting or receiving antenna element (12), an array of parasitic antenna elements (14), individually associated with reconfigurable loads (15), one or a plurality of near-field antennas (32), and a circuit (18, 34) for setting the configuration of the array of parasitic antenna elements according to a radiation picked up by the near-field antenna(s) during a radio frequency transmission by the transmitting or receiving antenna element.

Abstract: The present description concerns an antenna (200) comprising: an amplifier array (201) comprising a plurality of first elementary cells (203); a transmitarray (105) comprising a plurality of second elementary cells (107); and at least one source (101), wherein said at least one source (101) is configured to irradiate, or to be irradiated by, the transmitarray (105), and the amplifier array (201) is configured to irradiate and to be irradiated by the transmitarray (105).

Abstract: The present description concerns an antenna (100) comprising an amplifier array (101) comprising a plurality of first elementary cells (103); and a transmitarray (105) comprising a plurality of second elementary cells (107), wherein the amplifier array (101) is configured to irradiate, or to be irradiated by, the transmitarray (105), the amplifier array (101) being separated from the transmitarray (105) by a distance equal, to within 20%, to a central transmission and/or reception wavelength of the antenna (100).

Abstract: The invention relates to an antenna device configured to superimpose a plurality of electromagnetic modes in the near field, with a multilayer structure comprising, in a vertical stacking direction: a first power supply layer comprising a first dielectric on an application-specific integrated circuit and on a lower part of a DC power supply circuit, a second power supply layer comprising an upper part of a DC power supply circuit, a third layer comprising a second dielectric on a metal plane, a fourth layer comprising at least one planar radiating element, the metal plane acting as a grounding plane, a fifth layer comprising a radome, the antenna device comprising at least one feed line extending from the first to the fourth layer.

Abstract: The present description concerns a transmitarray or reflectarray cell (105), comprising at least two switches made of a phase-change material.

Abstract: The present description concerns a transmitarray cell (105) adapted to implementing a full-duplex communication, the cell comprising: a first antenna element (105a) located on a first surface of the cell; a second antenna element (105b) located on a second surface of the cell, opposite to the first surface; a transmit channel comprising, between the first and second antenna elements, a first phase-shift and amplifier circuit (203a); and a receive channel comprising, between the first and second antenna elements, a second phase-shift and amplifier circuit (203b).

Abstract: A transmitarray cell (105) comprises a first antenna element (105a) adapted to switching between two phase states, a second antenna element (105b) adapted to switching between two other phase states and between two circular polarization directions and a coupler (201) coupling the first antenna element to the second antenna element.

Abstract: A stack for fabricating an integrated circuit intended to perform an electromagnetic-lens function for a reconfigurable transmitarray antenna, the stack including in succession: a substrate that includes a set of first active components configured to generate a phase shift, and that has first and second opposite surfaces, the first active components being integrated monolithically into the substrate; a metal layer, forming a ground plane on the first surface of the substrate; a layer of a cured polymer, formed on the metal layer; vias that are electrically insulated from the metal layer and that are arranged to electrically connect pairs of planar antennas, each electrically connected pair of planar antennas including first and second planar antennas that are aligned along the normal to the first and second surfaces of the substrate.

Abstract: The present description concerns a polarization cell (109) comprising a rectangular conductive plane having an off-centered opening, a terminal of application of an input signal located inside of the opening, a first switching element coupling the terminal to a first region of the conductive plane located in the vicinity of a first corner of the conductive plane and a second switching element coupling the terminal to a second region of the conductive plane located in the vicinity of a second corner of the conductive plane, the first and second corners being coupled by a same side of the conductive plane.

Abstract: A switch based on a phase change material including: a region in said phase change material that couples the first and second conductive electrodes of the switch; and a waveguide including a first end in line with a face of the region in said phase change material and a second end, opposed to the first end, designed to be illuminated by a laser source.

Abstract: The present description concerns an antenna system comprising a transmitting or receiving antenna element (12), an array of parasitic antenna elements (14), individually associated with reconfigurable loads (15), one or a plurality of near-field antennas (32), and a circuit (18, 34) for setting the configuration of the array of parasitic antenna elements according to a radiation picked up by the near-field antenna(s) during a radio frequency transmission by the transmitting or receiving antenna element.

Abstract: The present description concerns a transmitarray or reflectarray cell (105), comprising at least two switches made of a phase-change material.

Abstract: The present description concerns a polarization cell (109) comprising a rectangular conductive plane having an off-centered opening, a terminal of application of an input signal located inside of the opening, a first switching element coupling the terminal to a first region of the conductive plane located in the vicinity of a first corner of the conductive plane and a second switching element coupling the terminal to a second region of the conductive plane located in the vicinity of a second corner of the conductive plane, the first and second corners being coupled by a same side of the conductive plane.

Abstract: A reconfigurable antenna, includes an emissive region, including at least one radiating source designed to emit electromagnetic waves; and an electromagnetic lens, including a set of phase-shifting cells, including switches configured to introduce a phase shift to the electromagnetic waves, and bias lines to bias the switches. The antenna further includes an electromagnetic coupling region, arranged between the emissive region and the electromagnetic lens in order to generate electromagnetic coupling between the electromagnetic waves and the set of phase-shifting cells, wherein the electromagnetic coupling region comprises a set of electrically conductive elements, arranged to form a contour of a resonant cavity guiding the electromagnetic waves towards the electromagnetic lens, the set of electrically conductive elements comprising first tracks electrically connected to the bias lines.

Abstract: The invention relates to an antenna device configured to superimpose a plurality of electromagnetic modes in the near field, with a multilayer structure comprising, in a vertical stacking direction: a first power supply layer comprising a first dielectric on an application-specific integrated circuit and on a lower part of a DC power supply circuit, a second power supply layer comprising an upper part of a DC power supply circuit, a third layer comprising a second dielectric on a metal plane, a fourth layer comprising at least one planar radiating element, the metal plane acting as a grounding plane, a fifth layer comprising a radome, the antenna device comprising at least one feed line extending from the first to the fourth layer.