| 摘要 |
<p>The invention concerns an armoured magnetic field antenna comprising at least one spire of metal element and a metal tubular armour arranged around said element. The spire (3a) is made of a printed circuit of insulating material (4a). The armour is constituted by two open rings (5a, 6a), made of printed circuit and arranged respectively on a lower card (9a) and an upper card (10a) of insulating material, said cards being assembled by clasping the spire and of a plurality of metal vias (7a, 8a) connecting the edges of the two rings through said cards, said vias being distributed on either side of the spire.</p> |
