A flat data transmission cable includes a plurality of juxtaposed wires, a plastic layer enclosing on the wires integrally and a metallic layer formed by a metal material belt arranged on an outer side of the plastic layer in a spiral winding way, each wire has a conductor. The metallic layer has at least an aluminum foil layer and a bonding layer arranged on the side of the aluminum foil layer facing to the plastic layer, the metallic layer is bonded to the outer side of the plastic layer by the bonding layer.

A flat data transmission cable includes a plurality of juxtaposed wires, a plastic layer enclosing on the wires integrally and a metallic layer formed by a metal material belt arranged on an outer side of the plastic layer in a spiral winding way. In the length direction of the data transmission cable, the data transmission cable has at least one bending portion, the data transmission cable is formed with a first section and a second section on both sides of the bending portion, and a stable bending angle is formed between the first section and the second section.

A printed circuit board comprises a substrate and a routing structure arranged on the substrate, the substrate has a welding region and a routing region electrical connected with the welding region. The routing structure comprises a plurality of bonding pads connected with corresponding wires and a plurality of conductive traces electrically connected with the bonding pads, the bonding pads is arranged in the welding region, and the conductive traces are disposed in both the welding region and the routing region. The bonding pads are arranged abreast, and in the arrangement direction of the bonding pads, the bonding pads defines at least two grounding pads for connecting with grounding wires and at least a signal pad between the two grounding pads.

In a wire harness, an electric wire conductor is formed in an elongated and flat shape, extends along an extending direction, and has one end connected to a positive electrode side of a battery. A ground conductor is formed in an elongated and flat shape, extends along the extending direction, is insulatively stacked on the electric wire conductor, and has one end connected to a negative electrode side of the battery. The communication conductor is formed in an elongated shape, extends along the extending direction, and is insulatively stacked on the ground conductor on the side opposite to the electric wire conductor side. The dielectric is provided between the communication conductor and the ground conductor and has a predetermined dielectric constant. The communication conductor, the dielectric, and the ground conductor constitute the microstrip line capable of transmitting the signal.

A microfabricated laminated conductor, comprising at least two flat metallic conductors held together parallel by their edges by a first dielectric material anchor, such that there exists a gap of between several nanometers and several micrometers between most of the at least two flat metallic conductors.

A circuit body for a vehicle is wired on a vehicle body of the vehicle for performing supply of electric power to an electrical component and communication of various communication signals with the electrical component. The circuit body includes: a plurality of control boxes separately disposed on the circuit body and capable of controlling input and output of at least one of the electric power and the communication signal; a trunk line harness connecting one of the plurality of control boxes and another of the plurality of control boxes; and a branch line harness connecting the control box and the electrical component. The circuit body has a loop structure in which at least part of the plurality of control boxes are annularly connected via the trunk line harness.

A circuit body for a vehicle includes: a plurality of control boxes capable of controlling input and output of at least one of electric power and a communication signal; a trunk line harness connecting one of the plurality of control boxes and another of the plurality of control boxes; and a branch line harness connecting the control box and the electrical component. The control box includes: a trunk line connecting portion to which the trunk line harness is connected; and a branch line connecting portion to which the branch line harness is connected. At least one of the trunk line connecting portion and the branch line connecting portion includes a plurality of connectors which are classified into a plurality of groups according to an allowable current amount and in which a plurality of the connectors classified into the same group have connection compatibility.

An arrangement structure of a wiring member includes: a wiring member including a plurality of wire-like transmission members parallelly arranged and a base keeping the plurality of wire-like transmission members in a state of being arranged side by side; and an arrangement target of the wiring member, wherein a slit extending along a longitudinal direction of the plurality of wire-like transmission members is formed in a portion of the base between the plurality of wire-like transmission members.

A wiring member includes conduction paths. Each of the conduction paths includes a conductive portion which extends in a longitudinal direction of each of the conduction paths, and a connection portion which is provided on at least one end of the conductive portion in the longitudinal direction and is configured to be connected to a mating conductor. The conduction paths are disposed in parallel to each other in a width direction of each of the conduction paths perpendicular to the longitudinal direction so that an insulator is arranged between adjacent conductive portions of the conduction paths. The conductive portion of the each of the conduction paths has a layer-stacked structure in which a conductive plate member is folded and overlapped at least one time along a vertical folding line extending in the longitudinal direction.

A microfabricated laminated conductor, comprising at least two flat metallic conductors held together parallel by their edges by a first dielectric material anchor, such that there exists a gap of between several nanometers and several micrometers between most of the at least two flat metallic conductors.