Abstract: According to one aspect, a phased array antenna includes a plurality of elementary antennas, and an amplifier circuit for each elementary antenna. The amplifier circuit includes a power amplifier configured to amplify at least two useful signals of different frequencies to be transmitted by the elementary antenna, a third-order intermodulation product control circuit configured to control a phase of third-order intermodulation products generated by the amplifier circuit so as to control an orientation of a radiation of the third-order intermodulation products transmitted by the phased array antenna.

Abstract: This reconfigurable power amplification device (110) includes, between an input (112) and an output (114), a first power channel (115) and a second power channel (117), and a switching means for dynamically selecting either one of the power channels in order to forward power between the input and the output of the device. The switching means includes an output coupler (132) able to operate in a coupling mode or in a combination mode, and a circuit (136, 138) for controlling the coupler so as to have it operate either in a coupling mode so that the power path passes through the second power channel, or in a combination mode so that the power path passes through the first power channel. Application to an integrated circuit in hybrid or MMIC technology.

Abstract: The invention concerns a circuit for multi-standard wireless RF transmission comprising: input circuitry (302 to 314) for generating a transmission signal (IT(t), QT(t)) based on an input data signal (I, Q); a power amplifier (316) adapted to amplify said transmission signal to provide an output signal (S(t)) for transmission via at least one antenna; and feedback circuitry (320 to 340) comprising at least one variable low-pass filter (334, 336) for generating a feedback signal (IFB, QFB) based on said output signal, wherein said input circuitry further comprises pre-distortion circuitry (302) adapted to modify said input data signal (I, Q) based on said feedback signal.

Abstract: The invention concerns a circuit for multi-standard wireless RF transmission comprising: input circuitry (302 to 314) for generating a transmission signal (IT(t), QT(t)) based on an input data signal (I, Q); a power amplifier (316) adapted to amplify said transmission signal to provide an output signal (S(t)) for transmission via at least one antenna; and feedback circuitry (320 to 340) comprising at least one variable low-pass filter (334, 336) for generating a feedback signal (IFB, QFB) based on said output signal, wherein said input circuitry further comprises pre-distortion circuitry (302) adapted to modify said input data signal (I, Q) based on said feedback signal.

Abstract: A reconfigurable power amplifier includes at least one amplification circuit (E1, E2), and a circuit (6) for controlling the amplification circuit so as to adapt its operation according to an applied input signal (RFin). The circuit for controlling includes a circuit (4, 5) for modifying the compression point of the amplification circuit and for adapting the gain of the amplification circuit in such a manner as to increase the power added efficiency of the circuit for the modified compression point.

Abstract: A reconfigurable power amplifier includes at least one amplification circuit (E1, E2), and a circuit (6) for controlling the amplification circuit so as to adapt its operation according to an applied input signal (RFin). The circuit for controlling includes a circuit (4, 5) for modifying the compression point of the amplification circuit and for adapting the gain of the amplification circuit in such a manner as to increase the power added efficiency of the circuit for the modified compression point.