Abstract: This unit cell comprises: a patch reception antenna; a patch transmission antenna, and comprising first and second separate radiation surfaces; a first phase-shift circuit, comprising first and second switches respectively exhibiting an on state and an off state, alternately, between the first and second radiation surfaces of the transmission antenna; and is noteworthy in that the reception antenna comprises first and second separate collection surfaces; and in that the unit cell comprises a second phase-shift circuit comprising first and second switches respectively exhibiting an on state and an off state, alternately, between the first and second collection surfaces of the reception antenna.

Abstract: This device has a ground plane at floating potential; at least one dipole antenna, extending through the ground plane, and comprising first and second strands extending on either side of the ground plane; and a control circuit, arranged on the ground plane in order to control the or each dipole antenna.

Abstract: An antenna including: an array of individually-controllable elementary cells, each cell being capable of transmitting a radio signal by introducing into the signal a controllable phase shift selected from among at least two discrete phase-shift values; on the side of a first surface of the array, first, second, third, and fourth primary sources capable of respectively irradiating first, second, third, and fourth consecutive quadrants of the array; and a processing circuit capable of supplying a first signal representative of the sum of the signals S1, S2, S3, and S4 supplied, respectively, by the first, second, third, and fourth sources, a second output signal representative of difference S1+S2?S3?S4, and a third output signal representative of difference S1?S2?S3+S4.

Abstract: The invention concerns a transmit array (203) including a plurality of cells, each cell being capable of transmitting a radio signal by introducing into this signal a phase shift, said plurality of cells including cells of a first type (205-I) and cells of a second type (205-II), wherein: the array comprises a stack of first (M1), second (M2), and third (M3) conductive layers separated two by two by dielectric layers (D1, D2); each cell includes a first antenna element (205a) formed in the first conductive layer (M1) and a second antenna element (205b) formed in the third conductive layer (M3); in each cell of the first type, the first antenna element is connected to the second antenna element by a via (211) crossing the second conductive layer; and in each cell of the second type, the first antenna element is not connected to the second antenna element.

Abstract: This unit cell comprises: a patch reception antenna; a patch transmission antenna, and comprising first and second separate radiation surfaces; a first phase-shift circuit, comprising first and second switches respectively exhibiting an on state and an off state, alternately, between the first and second radiation surfaces of the transmission antenna; and is noteworthy in that the reception antenna comprises first and second separate collection surfaces; and in that the unit cell comprises a second phase-shift circuit comprising first and second switches respectively exhibiting an on state and an off state, alternately, between the first and second collection surfaces of the reception antenna.

Abstract: A transceiver for In-Band Full-Duplex communication is provided. The transceiver includes a duplexer and a bidirectional frequency transposition module, the frequency transposition module being suitable for transposing a signal to be transmitted, with a predetermined frequency shift, ?F, in order to obtain a transmit signal, and for transposing the receive signal, with the same frequency shift, in order to obtain the received signal, with the frequency band of the signal to be transmitted and the frequency band of the received signal thus being separated by a frequency shift which is double the predetermined frequency shift.

Abstract: Unit cell including a receive antenna, a transmit antenna, and including first and second radiation surfaces separated from each other by a separation area, a phase-shift circuit comprising switches, each having an on, respectively off, state, wherein the corresponding switch allows, respectively blocks, the flowing of a current between the first and second radiation surfaces; a ground plane; a first printed circuit board including a first surface provided with the receive antenna, and a second opposite surface provided with the ground plane; a wafer of a semiconductor material including a first surface provide with first and second radiation surfaces and wherein the switches are formed in the separation area, monolithically with the transmit antenna.

Abstract: A transceiver for In-Band Full-Duplex communication is provided. The transceiver includes a duplexer and a bidirectional frequency transposition module, the frequency transposition module being suitable for transposing a signal to be transmitted, with a predetermined frequency shift, ?F, in order to obtain a transmit signal, and for transposing the receive signal, with the same frequency shift, in order to obtain the received signal, with the frequency band of the signal to be transmitted and the frequency band of the received signal thus being separated by a frequency shift which is double the predetermined frequency shift.

Abstract: An antenna including: an array of individually-controllable elementary cells, each cell being capable of transmitting a radio signal by introducing into the signal a controllable phase shift selected from among at least two discrete phase-shift values; on the side of a first surface of the array, first, second, third, and fourth primary sources capable of respectively irradiating first, second, third, and fourth consecutive quadrants of the array; and a processing circuit capable of supplying a first signal representative of the sum of the signals S1, S2, S3, and S4 supplied, respectively, by the first, second, third, and fourth sources, a second output signal representative of difference S1+S2?S3?S4, and a third output signal representative of difference S1?S2?S3+S4.

Abstract: Unit cell including a receive antenna, a transmit antenna, and including first and second radiation surfaces separated from each other by a separation area, a phase-shift circuit comprising switches, each having an on, respectively off, state, wherein the corresponding switch allows, respectively blocks, the flowing of a current between the first and second radiation surfaces; a ground plane; a first printed circuit board including a first surface provided with the receive antenna, and a second opposite surface provided with the ground plane; a wafer of a semiconductor material including a first surface provide with first and second radiation surfaces and wherein the switches are formed in the separation area, monolithically with the transmit antenna.

Abstract: A radiating cell having two phase states suitable for a transmitter array able to transmit microwave frequency signals, the cell comprising a first antenna and a second antenna arranged on either side of an assembly comprising two substrate layers separated by a ground plane, the second antenna comprising a conducting element able to radiate, the cell comprising comprises at least two switching means, said means each comprising an on state and an off state between two ports, one of said ports being connected to the second radiating element, said switching means being controlled in opposition. The radiating cell applies notably to the implementation of transmitter arrays employing several configurable cells to control the radiation pattern.

Abstract: A radiating cell having two phase states suitable for a transmitter array able to transmit microwave frequency signals, the cell comprising a first antenna and a second antenna arranged on either side of an assembly comprising two substrate layers separated by a ground plane, the second antenna comprising a conducting element able to radiate, the cell comprising comprises at least two switching means, said means each comprising an on state and an off state between two ports, one of said ports being connected to the second radiating element, said switching means being controlled in opposition. The radiating cell applies notably to the implementation of transmitter arrays employing several configurable cells to control the radiation pattern.