Abstract: A frequency conversion device, intended for installation on board a satellite, comprises an active assembly comprising at least one first radiofrequency processing chain comprising a first mixer, a first local oscillator operating at a first frequency and linked to the first mixer, at least one second radiofrequency processing chain comprising a second mixer, and a second local oscillator operating at a second frequency and linked to the second mixer and a current or voltage converter for supplying power to the active assembly.

Abstract: A frequency conversion device, intended for installation on board a satellite, comprises an active assembly comprising at least one first radiofrequency processing chain comprising a first mixer, a first local oscillator operating at a first frequency and linked to the first mixer, at least one second radiofrequency processing chain comprising a second mixer, and a second local oscillator operating at a second frequency and linked to the second mixer and a current or voltage converter for supplying power to the active assembly.

Abstract: Heterodyne mixer comprising: a divider of a signal RF for generating a signal RF1 and a signal RF2; a reference means comprising a local oscillator generating a reference signal LO; a second division means for dividing the reference signal into a reference signal LO1 and into a reference signal LO2; at least two mixture cells mixing on the one hand the signal RF1 with the reference signal LO1 so as to create an intermediate signal IF1 and on the other hand the signal RF2 with the reference signal LO2 so as to create an intermediate signal IF2; a combiner for recombining the intermediate signal IF1 and the intermediate signal IF2 into an intermediate output signal IF. The mixer comprises at least one configurable phase-shifting device for phase-shifting a signal via a remote control.

Abstract: A device for transmitting electromagnetic signals across a structure including functional modules organized so that two-for-one redundancy is obtained, in the case of signals that are transmitted by electromagnetic waveguides, includes a waveguide, an input end of which receives signals intended to be fed to one or the other of two functional modules organized so that two-for-one redundancy is obtained, and the other end of which is short circuited. It includes two electric field sampling units, each of which is adapted to feed one of the modules and which are disposed at respective distances from the short circuited end of the waveguide that are equal to one quarter of the wavelength of the signals transmitted by the waveguide or an odd number multiple thereof. Each module has an output connected to a single-pole switch or combiner transmitting signals from either or both of the two modules downstream of the device.

Abstract: The invention relates to a microwave module having an outer face with a connection device. In the module the connection device presents, on the outer face, a central conductive zone and a peripheral conductive zone, and inside the volume of the module, connective zone, and inside the volume of the module, connection to the device takes place by means of coplanar conductors comprising a central signal conductor connected to the central conductive zone, and lateral ground conductors connected to the peripheral conductive zone. The connection is favorable to miniaturization and is suitable for operating over a broad band.

Abstract: A device for transmitting electromagnetic signals across a structure including functional modules organized so that two-for-one redundancy is obtained, in the case of signals that are transmitted by electromagnetic waveguides, includes a waveguide, an input end of which receives signals intended to be fed to one or the other of two functional modules organized so that two-for-one redundancy is obtained, and the other end of which is short circuited. It includes two electric field sampling units, each of which is adapted to feed one of the modules and which are disposed at respective distances from the short circuited end of the waveguide that are equal to one quarter of the wavelength of the signals transmitted by the waveguide or an odd number multiple thereof. Each module has an output connected to a single-pole switch or combiner transmitting signals from either or both of the two modules downstream of the device.

Abstract: The invention relates to an active antenna panel comprising an array of n radiating elements and a multilayer-structure m-beam distributor designed to feed the n radiating elements, the distributor having first “formation” layers for supporting beam-forming means, and second “connection” layers designed to support first electrical connection means for interconnecting the first layers, and second electrical connection means for connection to the radiating elements. In the invention the forming layers extend substantially perpendicularly to the main plane of the antenna, the forming layers and the connection layers are assembled together by molding so that the beam distributor constitutes a single block, and the radiating elements are connected directly to the second connection means.