Apparatus and method for detecting electromagnetic radiation emitted by a device

摘要

Apparatus and a method for detecting electromagnetic radiation emitted by a device, the device including multiple components that emit electromagnetic radiation. The apparatus comprises a container lined with electromagnetic anechoic absorber, a support located within the container for receiving the device, a planar antenna located within the container for detecting electromagnetic radiation emitted by the device, the antenna being movable relative to the support to vary the distance between the antenna and the support, and measurement apparatus for recording the electromagnetic radiation emitted by the device at different positions of the antenna relative to the support.