A DEVICE FOR SHIELDING ELECTRONIC UNITS INCLUDING A TRANSMITTING/RECEIVING EQUIPMENT, AND ESPECIALLY FOR SHIELDING MOBILE PHONES

摘要

The invention relates to a device shielding especially an electronic unit with a transmitter, such as a mobile phone, against electromagnetic radiation. The device includes a crystal and an winding/spiral, where the winding/spiral is wound with the crystal arranged in the middle. One end of the winding extends immediately adjacent the antenna of the electronic unit. The device includes also a second winding of ferromagnetic material and a metallic film.