Method and Apparatus for Imaging Test Objects by Means of Electromagnetic Waves, in Particular for the Purpose of Checking Individuals for Suspicious Articles

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes a method and apparatus for imaging objects, particularly people, using electromagnetic waves such as millimeter waves, to detect concealed or suspicious items. The technique uses Synthetic Aperture Radar (SAR) principles by spatially concentrating waves from an antenna, with this focal point acting as a moving virtual antenna, enabling high-resolution imaging. This innovation allows for efficient scanning and image creation of objects to identify hidden articles such as weapons or explosives.

Use CasesContent extracted from patent full text and abstract with AI.

• Security screening at airports and other transport hubs to detect concealed weapons or explosives on passengers.
• Automated baggage inspection systems for detecting hidden or dangerous items in luggage.
• Industrial or customs inspection for quality control and contraband detection inside sealed packages.
• Non-invasive medical imaging for detecting abnormalities or foreign objects within the body.
• Surveillance or entry checks in high-security buildings and events.

BenefitsContent extracted from patent full text and abstract with AI.

• Provides high-resolution imaging for more accurate detection of hidden objects.
• Enables cost-effective and simpler implementation compared to complex phased array antenna systems.
• Can scan and create images from multiple perspectives, increasing thoroughness and reliability of screening.
• Reduces need for manual, invasive searches, improving convenience and privacy for individuals.
• Operable across a wide frequency range, with particular suitability for safe millimeter wave scanning.

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Patent Abstract

A method for imaging test objects by means of electromagnetic waves, in particular for the purpose of checking individuals for suspicious articles, in which method the test object is illuminated by electromagnetic waves, the scattered waves are received and evaluated for an imaginal representation of the test object on the basis of the synthetic aperture principle (SAR). A synthetic aperture is produced by the waves output by an antenna (1) being concentrated initially in spatial terms, the point (5) of high concentration being moved on a reflector (4) along a circle.