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US 2001/0024148 A1Published application
Filter arrangement
AssigneeDiehl Avionik GmbH
InventorsBruno Gerstenberg, Hans-Joachim Michling, Helmut Messmer
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AssigneeDiehl Avionik GmbH
InventorsBruno Gerstenberg, Hans-Joachim Michling, Helmut Messmer
Estimating the term…
The invention relates to a filter arrangement for separating radio frequency energy from signal energy in a signal line. The signal line extends at least partly in a first layer of a multi-layer printed circuit board. A grounded surface is arranged in a second layer of the printed circuit board. The signal line to be filtered is interrupted in the first layer in the filter region and continued in a third layer, the second and the third layers being located on opposite sides of the first layer. Due to the skin effect the radio frequency energy will be concentrated on the side of the signal line facing the grounded surface. The side of the signal line remote from the grounded surface is then to a large extent decoupled from radio frequency energy, such that the actual signal path can be continued without being disturbed by radio frequency energy.
A filter arrangement for separating radio frequency energy from signal energy in a signal line extending at least partly in a first layer of a multi-layer printed circuit board, a grounded surface being arranged in a second layer of said printed circuit board, wherein said signal line to be filtered is interrupted in said first layer in a filter region and continued in a third layer, said second and said third layers being located on opposite sides of said first layer.
Dependencies are inferred from the claim text.