| 摘要 |
A filter arrangement is described which is integrated in a multi-layer printed circuit board for separating a region containing radio frequency fields from a region shielded from radio frequency fields along a separating surface. A separating surface (16) separating the two regions extends transversely to the planes of the layers of the printed circuit board. Metal-coated, grounded areas 54, 56, 58, 60, 62, 64 are provided along the separating surface in layers which are separated by at least one intermediate layer. Strip conductors 66,(68, 70, 72, 74) pass through the separating surface in said intermediate layers. Conductive areas are formed by broadened portions of these strip conductors in the region of the separating surface, these conductive areas together with the grounded surfaces forming filter capacitors for shunting radio frequency fields. |
