A multi-member cable includes at least a first cable element and a second cable element. The first and second cable elements twist around a center axis of the cable in a counterclockwise direction multiple times to a first reversal point, then twist about the center axis of the cable in a clockwise direction multiple times until a second reversal point, with this pattern repeating along a length of the cable. Adhesion points are formed at intervals along a length of the cable to connect the first and second cable elements. The adhesion points may be spaced apart at an interval equal to a distance between the first and second reversal points. An outer surface of a jacket of the cable may include indications at the first and/or second reversal points, such as physical bumps or markings.

A multi-member cable includes at least a first cable element and a second cable element. The first and second cable elements twist around a center axis of the cable in a counterclockwise direction multiple times to a first reversal point, then twist about the center axis of the cable in a clockwise direction multiple times until a second reversal point, with this pattern repeating along a length of the cable. Adhesion points are formed at intervals along a length of the cable to connect the first and second cable elements. The adhesion points may be spaced apart at an interval equal to a distance between the first and second reversal points. An outer surface of a jacket of the cable may include indications at the first and/or second reversal points, such as physical bumps or markings.

A sheath member has a cylindrical and flexible main body to accommodate an electric wire and a deformation restricting portion molded on an outer peripheral side of the main body and extending over a predetermined shape maintaining range such that the main body is maintained in a desired routing shape.

A sheath member has a cylindrical and flexible main body to accommodate an electric wire and a deformation restricting portion molded on an outer peripheral side of the main body and extending over a predetermined shape maintaining range such that the main body is maintained in a desired routing shape.

A high-speed transmission line includes a first shielded layer, a first insulating layer, a conductor layer, a second insulating layer and a second shielded layer sequentially attached to each other. The conductor layer includes plural first conductors and plural first conductors interspersed with each other, and the first conductor has a round cross section and is made of a round copper wire capable of increasing the signal transmission speed and extending the scope of application of the transmission line of a flexible cable.

A high-speed transmission line includes a first shielded layer, a first insulating layer, a conductor layer, a second insulating layer and a second shielded layer sequentially attached to each other. The conductor layer includes plural first conductors and plural first conductors interspersed with each other, and the first conductor has a round cross section and is made of a round copper wire capable of increasing the signal transmission speed and extending the scope of application of the transmission line of a flexible cable.

The disclosed embodiments provide a plurality of antennas that can be interconnected with each other and with a central receiver in a self-assembling manner, such that antennas can be added, removed, and replaced with minimal configuration. Each antenna comprises an antenna feed circuit, an input connector, and an output connector. Each of the antennas may be configured to assign a first set of signal channels at its output connector to a second set of signal channels at its input connector (or vice versa) according to a predetermined or dynamically determined mapping. Each antenna may be further configured to assign a signal channel at its input connector to the signal it receives at its antenna feed circuitry. By sharing the same configuration for mapping signal channels between the antennas' input and output connectors and feed circuitry, the antennas can be added or removed in a sequence of antennas using simple cable connections and without having to rewire the connections at the central receiver.

The disclosed embodiments provide a plurality of antennas that can be interconnected with each other and with a central receiver in a self-assembling manner, such that antennas can be added, removed, and replaced with minimal configuration. Each antenna comprises an antenna feed circuit, an input connector, and an output connector. Each of the antennas may be configured to assign a first set of signal channels at its output connector to a second set of signal channels at its input connector (or vice versa) according to a predetermined or dynamically determined mapping. Each antenna may be further configured to assign a signal channel at its input connector to the signal it receives at its antenna feed circuitry. By sharing the same configuration for mapping signal channels between the antennas' input and output connectors and feed circuitry, the antennas can be added or removed in a sequence of antennas using simple cable connections and without having to rewire the connections at the central receiver.

An electric wire outer cover is provided which is to be fitted around an electric wire and which has a tubular housing portion where the electric wire is to be housed, the housing portion being formed of a sheet, the housing portion being formed in a folded state. Further, walls forming the housing portion include a first wall having a projection formed therefrom and a second wall having a hole formed therein, and the housing portion is formed by engagement between the first wall and the second wall through melting of the projection that has passed through the hole and welding of the melted projection to the second wall.

An electric wire outer cover is provided which is to be fitted around an electric wire and which has a tubular housing portion where the electric wire is to be housed, the housing portion being formed of a sheet, the housing portion being formed in a folded state. Further, walls forming the housing portion include a first wall having a projection formed therefrom and a second wall having a hole formed therein, and the housing portion is formed by engagement between the first wall and the second wall through melting of the projection that has passed through the hole and welding of the melted projection to the second wall.