MICROWAVE TRANSMISSION/RECEPTION ELEMENT STRUCTURE WITH DISTANCE-TO-SUBJECT RELATIVE MOTION, AND RELATED METHODOLOGY

摘要

Apparatus and a method for scanning personnel for the purpose of detecting and identifying certain categories of materials/objects. The invention utilizes stacked-circuit-board tiled assemblies (35), including one circuit board (35a, 35b, 35c) which carries an array of transmission/reception scanning microwave elements, which elements, during a scanning operation are shifted toward and away successively from a person being scanned. This motion is carried out in a manner enabling detection of peak valley (high and low) values of standing wave reflections, if any, which exist between one of these elements and a region of a person being scanned by the invention. These peak and valley can be employed, with respect to the magnitude difference between them, to enable 'found material/objects' identification.