Patent ID: 9531436
Filing Date: 2016-12-27
CPC Classification: H01F,H01Q,H04B

Claim Text:
1. A device for the two-way inductive coupling of data signals to a low- or medium-voltage power line ( 2 ), comprising: a ring-shaped magnetic core ( a connector ( a winding wound onto said ring-shaped magnetic core ( characterized in that said ring-shaped magnetic core ( where: said winding is formed by a copper sheet with two planar winding turns providing a 2:1 transformation ratio in relation to said power line ( electrical insulation is arranged between said copper sheet and the ring-shaped magnetic core ( said opposite planar faces ( the assembly of the ring-shaped magnetic core ( such that the device is configured for operating with low-frequency data signals between 50 kHz and 600 kHz with attenuation of 8 to 10 dB in a 100 to 250 kHz band and of 4 to 6 dB in a 250 to 600 kHz band.