Smiths Detection Ireland Limited

Farran Technology Limited

Msc Vertriebs Gmbh

Brendan Lyons

Emil Ivanov Entchev

Mohammed Ben Abdillah

Claus Meder

Pia Dreiseitel

Michael Crowley

Adam Widera

Jason Lynch

Sean Cremin

Claudius Volz

John McNaboe

Klaus-Michael Hussmann

David O'Driscoll

Martin Schneider

John Mcnaboe

Abdillah Mohammed Ben Ben

David O'DRISCOLL

Klaus-Michael Hauffman

The invention relates to an imaging system having a reflect array for reflection of radiation such as millimeter-wave radiation. It can apply to imaging systems which operate over a wide range of wavelengths.

Imaging system

An imaging system comprises a transmitter (), a receiver (), and a controller () for directing the transmitter and the receiver to scan an object in a volume. The controller determines which sub-volumes of the volume the object is located within and then performs a fine scan in those sub-volumes. This reduces overall scanning time. The controller () may compare a received signal sample magnitude from the initial scan with a threshold to make the decision. The initial scan may be performed with a spot size to include only one or more particular volume elements within at least some of the sub-volumes.

Image system designed to scan for security threats

Electrical properties of concealed dielectric objects, such as the dielectric permittivity, can be deduced from incident, reflected, and transmitted electromagnetic waves in an imaging system. In a confocal arrangement a horn illuminates a reflect array and the reflect array is configured to focus the radiation at an element in the scan volume. The reflections are in turn refocused by a reflect array at the horn aperture. The reflect array is electronically configured to scan the focal point throughout the scan volume in a systematic way. Knowledge of the horn pattern and the scan strategy allows the system to compute the geometry associated with each volume element. Amplitude and phase variations between the object and the surrounding volume and the computed geometry are used to estimate the relative permittivity and thus facilitate categorization of the object using a database of material relative permittivities.

Identification of potential threat materials using active electromagnetic waves

An upconverter receives an intermediate frequency (IF) modulated signal on a port () and a local oscillator carrier signal at a port (). A comb generator (-) generates a comb-like waveform from the carrier signal, the waveform having a peak for each of a number of multiples of the carrier fundamental. A bandpass filter () selects one of the comb peaks and there is further multiplication at a quadrupler (). The modulated signal (IF) and the multiplied carrier are mixed in a mixer () to provide a high frequency upper sideband (LO+IF) output. The output is transmitted in a waveguide () which is integral with the casing () and which performs high frequency filtering by virtue of its shape.

Upconverter

Growing community of inventors

Ballincollig, Ireland

Brendan Lyons