Abstract:
A millimeter wave transceiver including a plate forming an interposer having its upper surface supporting an interconnection network and having its lower surface intended to be assembled on a printed circuit board by bumps; an integrated circuit chip assembled on the upper surface of the interposer; antennas made of tracks formed on the upper surface of the interposer; and reflectors on the upper surface of the printed circuit board in front of each of the antennas, the effective distance between each antenna and the reflector plate being on the order of one quarter of the wavelength, taking into account the dielectric constants of the interposed materials.
Abstract:
A satellite receive unit for receiving a plurality of satellite signals from a plurality of satellites, the satellite receive unit including: a plurality of low noise blocks each for receiving one or more of the satellite signals and providing a received signal, at least one of the low noise blocks receiving a plurality of the satellite signals; and a satellite signal processing unit including a plurality of branches each arranged to receive a corresponding one of the received signals from the plurality of low noise blocks, each branch having a multiplier arranged to weight the received signal by multiplying by a corresponding coefficient; and an adder arranged to add the weighted signals of each branch to generate an output satellite signal.
Abstract:
A satellite receive unit for receiving a plurality of satellite signals from a plurality of satellites, the satellite receive unit including: a plurality of low noise blocks each for receiving one or more of the satellite signals and providing a received signal, at least one of the low noise blocks receiving a plurality of the satellite signals; and a satellite signal processing unit including a plurality of branches each arranged to receive a corresponding one of the received signals from the plurality of low noise blocks, each branch having a multiplier arranged to weight the received signal by multiplying by a corresponding coefficient; and an adder arranged to add the weighted signals of each branch to generate an output satellite signal.
Abstract:
The electronic component, comprises an integrated circuit incorporating several separate functional blocks within a semiconductor substrate, and electrostatic discharge protection means. These electrostatic discharge protection means comprise several separate metal discharge rails (GNDi) placed above the substrate (SB) and respectively associated with the plurality of functional blocks (CRi), all these metal discharge rails being mutually unconnected electrically within the integrated circuit (CI) but connected electrically via an electrical connection (FLi) external to the integrated circuit to one and the same ground plane (SLG) forming a ground reference for the electrostatic discharges, this ground plane (SLG) being located outside the integrated circuit (CI), and possibly being a heat slug.
Abstract:
A dual-conversion tuner firstly upconverts so as to place itself outside the receive band and then downconverts with zero intermediate frequency. A filter of the surface acoustic wave type is disposed between the two frequency transposition stages of the tuner. After baseband filtering, the signals are digitized then processed in a digital block comprising a channel decoding module. With the exception of the surface acoustic wave filter, the components are entirely embodied in integrated fashion.
Abstract:
An integrated circuit is embodied on a monolithic substrate and incorporates a tuning module of the direct sampling type that is able to receive satellite digital television analog signals composed of several channels, as well as several channel decoding digital modules connected at the output of the tuning module so as to deliver respectively simultaneously several streams of data packets corresponding to several different selected channels.
Abstract:
In a calibration phase for a tuner of the DZIF type, N calibration frequency signals are generated at an input of a filter. The N calibration frequency signals have N calibration frequencies corresponding respectively after transposition to N analysis frequencies at an input of a Fourier transform. An amplitude and a phase of a corresponding point at an output of the Fourier transform are calculated for each analysis frequency. In a reception phase, each of the outputs of the Fourier transform is corrected with an inverse of the corresponding amplitude and opposite the corresponding phase calculated in the calibration phase.
Abstract:
A tuner includes an analog block, a digital block, and an analog/digital conversion stage connected therebetween. The analog block includes a first attenuator/controlled-gain amplifier stage connected upstream to a frequency transposition stage. The overall mean power of the entire signal received by the tuner is calculated during a phase of initialization. This overall calculated power is compared in the digital block with a first predetermined reference value corresponding to a maximum power desired at a predetermined location of the analog block. The gain of the first attenuator/amplifier stage is adjusted to minimize the deviation between the overall calculated power and the reference value. In a phase of normal operation, one of the channels of the signal received is selected, with the gain of the first attenuator/amplifier stage being fixed.
Abstract:
A millimeter wave transceiver including a plate forming an interposer having its upper surface supporting an interconnection network and having its lower surface intended to be assembled on a printed circuit board by bumps; an integrated circuit chip assembled on the upper surface of the interposer; antennas made of tracks formed on the upper surface of the interposer; and reflectors on the upper surface of the printed circuit board in front of each of the antennas, the effective distance between each antenna and the reflector plate being on the order of one quarter of the wavelength, taking into account the dielectric constants of the interposed materials.
Abstract:
An integrated superheterodyne dual-conversion tuner upconverts a signal so as to place it outside a reception band, and then downconverts the signal with a non-zero intermediate frequency. A first filter of the bulk acoustic wave type is positioned between the up and down conversion and is calibrated in such a way as to accurately determine its central frequency. A second filter of a microelectromechanical type receives the downconverted signal and is calibrated in such a way as to accurately determine its central frequency.