Abstract: In accordance with an embodiment, a connector is mechanically configurable between a wireless radio frequency transmission and a wired radio frequency transmission via a cylindrical dielectric radio frequency waveguide. The connector includes: a first package assembled to a printed circuit board provided with a radio frequency antenna; and a second package configured to be assembled to the waveguide, wherein the second package is configured to be removably assembled to the first package in the wired radio frequency transmission configuration and is separated from the first package in the wireless radio frequency transmission configuration.

Abstract: A method for predistorting an input signal with a view to compensating for the effect, on a radiofrequency signal generated from the input signal, of a non-linear transfer function of a power amplifier configured to amplify the radiofrequency signal. The method includes: carrying out a Walsh transform of a series of M terms dependent on temporal samples of the input signal delivering sequential components of a corresponding transformed series; calculating a sum of a plurality of operands resulting from the product between, a piece of data dependent on at least one element of a transformed series and a corresponding predistortion coefficient, delivering a corresponding sequential component of a predistorted transformed input signal: and carrying out an inverse Walsh transform of the sequential components of the predistorted transformed input signal, delivering an output signal for the generation of the radiofrequency signal.

Abstract: An example hybrid coupler is provided. An example hybrid coupler includes two or more transmission lines, a plurality of conductive strips, and a switch. The plurality of conductive strips are positioned proximate to at least one transmission line of the hybrid coupler. The proximity of the conductive strips alters a tuning equivalent capacitance between the at least one transmission line and a reference ground plane. According to slow-wave principles, a spacing distance between the conductive strips is smaller than or similar to the dielectric gap between the transmission line and the conductive strips. The switch is electrically connected to each conductive strip of the plurality of conductive strips and the reference ground plane. The tuning equivalent capacitance between the at least one transmission line and the ground plane is adapted based on a state of the switch, changing the tuning equivalent capacitance and center frequency of the hybrid coupler.

Abstract: A power amplifying circuit and an RF transmission system configured to generate and transmit RF signals encoding various data are provided. An example power amplifying circuit, includes a first hybrid coupler, an auxiliary amplifier, a main amplifier, and a second hybrid coupler. The first hybrid coupler is configured to receive an input radio frequency (RF) signal and generate a first coupler first output signal and a first coupler second output signal offset by a phase offset. The second hybrid coupler is configured to combine the auxiliary amplifier output and the main amplifier output in synchronization to generate an RF output signal at a second coupler second output. The second coupler first output is electrically connected to an inductive load.

Abstract: In an embodiment method for detecting the phase of an analog signal via a hybrid coupler operating in a power-combiner mode, the hybrid coupler comprises a first input intended to receive the analog signal, a second input intended to receive a reference signal having a reference phase and the same frequency as the analog signal, and two outputs, and is configured to generate, at these two outputs, a first output signal and a second output signal, respectively. The embodiment method comprises measuring peak values of the analog signal, the reference signal, and at least one of the first and second output signals, calculating the phase shift between the phase of the analog signal and the reference phase depending on the measured peak values, and determining the phase of the analog signal depending on the calculated phase shift and the reference phase.

Abstract: In an embodiment method for detecting the phase of an analog signal via a hybrid coupler operating in a power-combiner mode, the hybrid coupler comprises a first input intended to receive the analog signal, a second input intended to receive a reference signal having a reference phase and the same frequency as the analog signal, and two outputs, and is configured to generate, at these two outputs, a first output signal and a second output signal, respectively. The embodiment method comprises measuring peak values of the analog signal, of the reference signal, and of at least one of the first and second output signals, calculating the phase shift between the phase of the analog signal and the reference phase depending on the measured peak values, and determining the phase of the analog signal depending on the calculated phase shift and the reference phase.

Abstract: In accordance with an embodiment, a connector is mechanically configurable between a wireless radio frequency transmission and a wired radio frequency transmission via a cylindrical dielectric radio frequency waveguide. The connector includes: a first package assembled to a printed circuit board provided with a radio frequency antenna; and a second package configured to be assembled to the waveguide, wherein the second package is configured to be removably assembled to the first package in the wired radio frequency transmission configuration and is separated from the first package in the wireless radio frequency transmission configuration.

Abstract: In an embodiment method, a hybrid coupler comprises a first input receiving an analog signal, a second input receiving an additional analog signal phase shifted by 90° from the analog signal, and first and second outputs. The method comprises injecting into the second output a test signal having an initial test phase, iteratively generating a current test phase for the test signal, from the initial test phase to a final test phase equal to the initial test phase increased by at least one portion of one complete revolution, and, in each iteration, measuring the current peak value of the first output, and storing the current test phase and the current peak value as a maximum/minimum peak value if there is not a stored maximum/minimum peak value higher/lower than the current peak value, respectively, and determining a phase of the analog signal from the stored test phase.

Abstract: A hybrid coupler operating in a power divider mode includes two inputs, two outputs, a capacitive module coupled between the inputs and the outputs or on each input and each output. The capacitive module has an adjustable capacitive value making it possible to adjust the central frequency. A calibration method includes: delivering a first reference signal having a first reference frequency on the first input of the hybrid coupler, measuring the peak value of a first signal delivered to the first output of the coupler and measuring the peak value of a second signal delivered to the second output of the coupler. The two peak values are compared and an adjustment of the capacitive value of the capacitive module is made until an equality of the peak values is obtained to within a tolerance.

Abstract: In an embodiment method, a hybrid coupler comprises a first input receiving an analog signal, a second input receiving an additional analog signal phase shifted by 90° from the analog signal, and first and second outputs. The method comprises injecting into the second output a test signal having an initial test phase, iteratively generating a current test phase for the test signal, from the initial test phase to a final test phase equal to the initial test phase increased by at least one portion of one complete revolution, and, in each iteration, measuring the current peak value of the first output, and storing the current test phase and the current peak value as a maximum/minimum peak value if there is not a stored maximum/minimum peak value higher/lower than the current peak value, respectively, and determining a phase of the analog signal from the stored test phase.

Abstract: The method for detecting the phase (?1) of an analog signal (SA1) via a hybrid coupler (CH1) operating in a power-combiner mode, the hybrid coupler (CH1) comprising a first input (BE1) intended to receive the analog signal (SA1), a second input (BE2) intended to receive a reference signal (SREF) having a reference phase (?2) and the same frequency (FREF) as the analog signal (SA1), and two outputs (BS1, BS2), and configured to generate, at these two outputs (BS1, BS2), a first output signal (SS1) and a second output signal (SS2), respectively, comprises measuring peak values (A1, A2, A3, A4) of the analog signal (SA1), of the reference signal (SREF), and of at least one of the first and second output signals (SS1, SS2), calculating the phase shift (?1-?2) between the phase (?1) of the analog signal and the reference phase (?2) depending on said measured peak values (A1, A2, A3, A4), and determining the phase (?1) of the analog signal (SA1) depending on said calculated phase shift (?1-?2) and the reference

Abstract: Disclosed is an assembly for the propagation of waves of frequencies between 1 GHz and 10 THz, including: (a) a waveguide to guide the waves, the waveguide being produced from a plastic material, a part of the waves propagating inside this waveguide and another part of the waves propagating outside this waveguide; and (b) a protective covering which surrounds the waveguide delimiting one or more spaces between the waveguide and the covering, in which space or spaces the waves propagating outside the waveguide are contained, the protective covering thus forming a barrier to protect these waves from external disturbances.

Abstract: A 90° hybrid inductive-capacitive coupling stage includes two first stage terminals capable of forming two stage inputs or two stage outputs and two second stage terminals capable of respectively forming two stage outputs or two stage inputs. The coupling stage is advantageously modular having a first stage axis of symmetry and a second stage axis of symmetry orthogonal to each other with neighboring inductive metal tracks being overlaid in at least one crossing region to form both an inductive circuit and a capacitive circuit. The metal tracks are coupled to the first stage terminals and to the second stage terminals such that the two first stage terminals are situated on one side of the first stage axis of symmetry and the two second stage terminals are situated on the other side of the first stage axis of symmetry.

Abstract: This transformer includes primary and secondary tracks (10, 20) that are coupled to one another by mutual inductance, the primary and secondary tracks being superimposed on top of each other in two parallel planes while being arranged to follow the same contour (C), the plane of the primary track corresponding to the main conductive layer of the circuit, said layer being deposited on a substrate (30), and the secondary track being supported, plumb with the primary track, by supporting means including walls (41-46; 51-56), each wall bearing directly on the substrate and against a lower surface (24) of the secondary track (20), and having a length (L) larger than a width (I), and having a height allowing a predetermined interval to be created between an upper surface (14) of the primary track (10) and the lower surface (24) of the secondary track (20).

Abstract: Disclosed is an assembly for the propagation of waves of frequencies between 1 GHz and 10 THz, including: (a) a waveguide to guide the waves, the waveguide being produced from a plastic material, a part of the waves propagating inside this waveguide and another part of the waves propagating outside this waveguide; and (b) a protective covering which surrounds the waveguide delimiting one or more spaces between the waveguide and the covering, in which space or spaces the waves propagating outside the waveguide are contained, the protective covering thus forming a barrier to protect these waves from external disturbances.

Abstract: A hybrid coupler operating in a power divider mode includes two inputs, two outputs, a capacitive module coupled between the inputs and the outputs or on each input and each output. The capacitive module has an adjustable capacitive value making it possible to adjust the central frequency. A calibration method includes: delivering a first reference signal having a first reference frequency on the first input of the hybrid coupler, measuring the peak value of a first signal delivered to the first output of the coupler and measuring the peak value of a second signal delivered to the second output of the coupler. The two peak values are compared and an adjustment of the capacitive value of the capacitive module is made until an equality of the peak values is obtained to within a tolerance.

Abstract: A method is provided for controlling the matching of an antenna to a transmission path. The transmission path includes an amplifier stage coupled at an input or at an output to the antenna and to a resistive load. The method includes performing a checking phase by measuring a first current temperature at or in proximity of the antenna and a second current temperature at or in proximity of the resistive load, triggering a matching of the impedance seen at the input or at the output of the amplifier stage in the presence of a first condition involving the first and second current temperatures, and then stopping the matching of the impedance in the presence of a second condition involving the second current temperature.

Abstract: A method is provided for controlling the matching of an antenna to a transmission path. The transmission path includes an amplifier stage coupled at an input or at an output to the antenna and to a resistive load.

Abstract: A 90° hybrid inductive-capacitive coupling stage includes two first stage terminals capable of forming two stage inputs or two stage outputs and two second stage terminals capable of respectively forming two stage outputs or two stage inputs. The coupling stage is advantageously modular having a first stage axis of symmetry and a second stage axis of symmetry orthogonal to each other with neighboring inductive metal tracks being overlaid in at least one crossing region to form both an inductive circuit and a capacitive circuit. The metal tracks are coupled to the first stage terminals and to the second stage terminals such that the two first stage terminals are situated on one side of the first stage axis of symmetry and the two second stage terminals are situated on the other side of the first stage axis of symmetry.

Abstract: This transformer includes primary and secondary tracks (10, 20) that are coupled to one another by mutual inductance, the primary and secondary tracks being superimposed on top of each other in two parallel planes while being arranged to follow the same contour (C), the plane of the primary track corresponding to the main conductive layer of the circuit, said layer being deposited on a substrate (30), and the secondary track being supported, plumb with the primary track, by supporting means including walls (41-46; 51-56), each wall bearing directly on the substrate and against a lower surface (24) of the secondary track (20), and having a length (L) larger than a width (I), and having a height allowing a predetermined interval to be created between an upper surface (14) of the primary track (10) and the lower surface (24) of the secondary track (20).