The invention relates to a device for attenuating electromagnetic radiation present in a space, comprising an antenna for collecting the electromagnetic radiation provided with one or more coils. The device according to the invention does not however attenuate the harmful electromagnetic radiation by transformation but by discharge thereof to the earth. The device stated in the preamble has for this purpose the feature that the antenna is substantially rod-like, that the coils are arranged round the antenna such that the coils are coupled to the antenna and that the device can be connected to earth for the purpose of discharging the electromagnetic radiation to earth.
