A device for measuring characteristics of an electromagnetic field, in particular for an antenna radiation diagram

摘要

The invention relates to a measuring probe (4) in order to test the radiation emitted by an antenna (2), in particular an antenna emitting in the field of microwaves. The measurement probe (4) comprises a radiating element (8) receiving a bundle of small opening, in a predetermined direction or the axis of sight (delta). The radiating element (8) is fixed to a support (6), - even secured, in a fixed or removable manner, to a frame, for example, a rear plate (5). The measurement probe (4) also comprises a screen (7), carried by the support (6) and the reflecting the radiation that it intercepts. The shape of this screen (7) is such that it reflects the radiation the striking, by distributing the energy in the directions forming angles of large amplitude with the aiming direction (delta). On a site of the measurement, the measurement probe (4) is fixed on a movable carrier device, so that it is able to scan a surface that is predetermined.