Signal transmission cable with noise absorption high loss magnetic film formed on cable sheath
A technology of signal transmission and high loss, which is applied in the direction of coaxial cable/analog cable, insulated cable, communication cable, etc., and can solve the problems of impracticality, poor magnetic characteristic and frequency characteristic, and high cost
Inactive Publication Date: 2004-12-15
TOKIN CORP
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Abstract
In a signal transmission cable (10) comprising a conductor portion for transmission of signals and an insulator sheath (14) covering the conductor portion, a high loss magnetic film (15) is formed on at least one part of the outer surface of the insulator sheath. The high loss magnetic film has the maximum complex permeability mu'max in a frequency range of 0.1-10 gigahertz (GHz). An example of a magnetic composition of the high loss magnetic film is a M-X-Y magnetic composition comprising M, X and Y, where M is a metallic magnetic material consisting of Fe, Co, and/or Ni, X being element or elements other than M and Y, and Y being F, N, and/or O, said M-X-Y magnetic composition having a concentration of M in the composition so that said M-X-Y magnetic composition has a saturation magnetization of 35-80% of that of the metallic bulk of magnetic material comprising M alone.
Application Domain
Coaxial cables/analogue cablesInsulated cables +2
Technology Topic
EngineeringElectrical conductor +5
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Examples
- Experimental program(1)
- Effect test(1)
Example
PUM
Property | Measurement | Unit |
Characteristic impedance | 100.0 ~ 700.0 | cm·µΩ |
Average particle size | 1.0 ~ 40.0 | nm |
Thickness | 0.3 ~ 20.0 | µm |
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