Abstract: A spatial power combiner includes several inputs to which are respectively linked a plurality of transmission lines, and an output. A body defines a cavity and the plurality of transmission lines pass longitudinally through the cavity and are disposed around an absorbent member also extending longitudinally in the cavity. A power amplification set includes the spatial power combiner and an amplification structure at the input of the spatial power combiner.

Abstract: A system for measuring the attenuation of electromagnetic shielding of an infrastructure as a function of the frequency, including a transmitter of a white noise signal with a constant power over a frequency band between a minimum frequency and a maximum frequency, a signal receiver, the transmitter and the receiver being capable of sending a signal and receiving a signal across the infrastructure, the receiver including a filter module capable of applying sliding filter on the received signal between the minimum frequency and the maximum frequency, and a double synchronous detection module capable of double synchronous detection on a signal output by the filter module.

Abstract: A spatial power combiner includes several inputs to which are respectively linked a plurality of transmission lines, and an output. A body defines a cavity and the plurality of transmission lines pass longitudinally through the cavity and are disposed around an absorbent member also extending longitudinally in the cavity. A power amplification set includes the spatial power combiner and an amplification structure at the input of the spatial power combiner.

Abstract: A system for measuring the attenuation of electromagnetic shielding of an infrastructure as a function of the frequency, including a transmitter of a white noise signal with a constant power over a frequency band between a minimum frequency and a maximum frequency, a signal receiver, the transmitter and the receiver being capable of sending a signal and receiving a signal across the infrastructure, the receiver including a filter module capable of applying sliding filter on the received signal between the minimum frequency and the maximum frequency, and a double synchronous detection module capable of double synchronous detection on a signal output by the filter module.

Abstract: The present invention provides a portable imaging device 1 comprising a housing 2 and a microwave sensor 3 mounted in the housing 2. The device 1 also comprises first connection means for connecting the imaging device 1 to movement measuring means 4, and second connection means for connecting the imaging device 1 to a processor unit 5. During movement of the housing 2, the processor unit 5 is configured to act in iterative manner to form a microwave image by: detecting a determined movement of the detection zone of the sensor 3; adding an additional pixel to the microwave image, which pixel is positioned relative to the preceding pixel as a function of said detected movement; and giving said additional pixel a value of the signal of the sensor. The invention also provides an imaging system including such an imaging device 1 and a corresponding imaging method.

Abstract: The invention relates to a portable radiometric imaging device and to a corresponding method, finding a particular application in detecting articles carried by passengers or contained in baggage, for example in airports and train stations. The device includes a plurality of receiver antennas for picking up electromagnetic radiation from a plurality of parts of a body or an article and converting them into a plurality of signals representative of said radiation, a plurality of receiver modules associated with the antennas for receiving the signals representative of the radiation and converting them into a plurality of electrical signals, and a digital processor unit for responding to the electrical signals to create one or more digital signals representative of the electromagnetic radiation for display on a display as an image of the body or article.

Abstract: The invention concerns a coaxial automatic impedance adaptor characterized in that it comprises two slugs and has only a lateral translational movement along an axis Ox. The double slug tuner principle is based on the movement of two line segments of different characteristics of 50 O inside a closed cylinder on either side of standard connectors.

Abstract: The invention relates to a compact automatic impedance adapter in a waveguide, characterised in that the impedance is controlled by plungers, filling the entire guide with a magic-tee coupler plane E/plane H modifying the electrical and magnetic field, one plunger modifying the electrical field (E) in the guide and the second modifying the magnetic field (H).

Abstract: The invention concerns a coaxial automatic impedance adaptor characterized in that it comprises two slugs and has only a lateral translational movement along an axis Ox. The double slug tuner principle is based on the movement of two line segments of different characteristics of 50 O inside a closed cylinder on either side of standard connectors.

Abstract: The invention relates to a compact automatic impedance adapter in a waveguide, characterised in that the impedance is controlled by plungers, filling the entire guide with a magic-tee coupler plane E/plane H modifying the electrical and magnetic field, one plunger modifying the electrical field (E) in the guide and the second modifying the magnetic field (H).