Japanese Patent Details High-Speed Differential Communication Shielded Cable Design
A patent filed by AutoNetworks Technologies Ltd. (Japan) describes a shielded cable designed specifically for high-speed differential communication circuits .
Innovative Design:
Features two unshielded insulated wires arranged in parallel
A conductive shielding member is placed between the two insulated wires
The insulated wires themselves do not have a shielding function, but the conductive shielding member between them suppresses transmission interference between the two wires
Embodiments:
Design Option | Configuration | Benefit |
|---|---|---|
Embodiment 1 | Shielding member individually surrounds each insulated wire | Shields transmission interference between wires AND noise from other transmission paths |
Embodiment 2 | Two insulated wires collectively surrounded by a shielding layer | Excellent shielding performance with simpler construction |
Advantages:
The shielding member can be made of metal foil only, achieving performance equivalent to braided wire
Suppresses transmission failures caused by crosstalk
Enables compact design while maintaining signal integrity
