| 摘要 |
<p>The invention relates to a lightning protection device (25) for an antenna receiver, comprising a shield (40, 70) for a coaxial cable (35, 65) connected to the antenna, and a high-pass filter mounted in series relative to said shield and capable of limiting the low-frequency power flowing in said coaxial cable, comprising a capacitor (30, 50, 55) and an inductor lower than 1 ohm at the lowest frequency used by said receiver, said capacitor including at least one layer of a conductive material embedded in a printed circuit. In some embodiments, the capacitor is made of a printed circuit (30) comprising at least two floorplans (50, 55), each of which is connected to the ground of a connector (80, 85) of the coaxial cable. The printed circuit may e.g. comprise at least one layer of a highly pervious material sandwiched between two layers of a conductive material.</p> |
