Example proximity sensors are described. The proximity sensor can include a transceiver unit, and a leaky coaxial cable operably coupled to the transceiver unit. The proximity sensor described herein can be used with a steering wheel. For example, the leaky coaxial cable can be embedded in the steering wheel.

A communication cable includes a first leaky coaxial cable, a first leaky coaxial cable, and an approach cable. The first leaky coaxial cable has a first end and a second end connected to a communication device. The second leaky coaxial cable has a third end and a fourth end different from the first end and second end of the first leaky coaxial cable. The approach cable has a fifth end connected to the communication device and a sixth end connected to the third end of the second leaky coaxial cable, wherein the sixth end is positioned near the second end of the first leaky coaxial cable.

A method for arrangement of leaky coaxial cables applied to a strip-shaped elongated area, includes: reducing a quantitative radiation performance of initial ends of the leaky coaxial cable combination structures of two areas symmetrically arranged with respect to a central area in a length direction of the strip-shaped elongated area to ensure a small transmission loss, on the premise of ensuring that a comprehensive loss of a link tail end of the leaky coaxial cable is constant; and reducing an appropriate transmission loss of tail ends of the leaky coaxial cable combination structures of the two areas at the central area to increase the radiation performance.

Disclosed is a production process for slotting an outer conductor of a leaky cable, through which an integrated production line incorporating a metal strap slotting production line, a metal strap longitudinal coating production line and a sheathing production line is provided. A semi-finished product from a leaky cable insulation process is subsequently processed by laser in a numerical control laser cutting device for cutting out corresponding slot holes in a metal strap to produce a slotted outer conductor. Then the slotted metal strap is embossed, and directly coated on an insulator in a longitudinal coating forming mould of the outer conductor. The final sheathing process is completed in a sheath plastic extruding machine to produce a finished leaky cable product. The processes of the outer conductor of the leaky cable, including the raw material punching, the longitudinal coating forming, and the outer sheathing, are finished at one time.

Methods and systems are provided for enhanced communication cables which may be configured for supporting at least two separate functions, including distribution of data and at least one other different function. An example enhanced cable may include an arrangement along at least a section of the cable, with that arrangement configured for supporting at least the other different function. The other different function may include illumination. The arrangement may include an illumination arrangement. The cable may include light guiding material configured for use in conjunction with the illumination arrangement. The cable may include a jacket configured to accommodate the arrangement. The cable may include one or more apertures arranged on at least one component of the cable, in accordance with a specific pattern based on the arrangement. A location and/or a shape of at least one aperture may be configured based on at least one component of the arrangement.

The present disclosure provides a wide beam radiation leakage coaxial cable, which includes an inner conductor, an insulating layer, an outer conductor and a sheath coaxially nested from inside to outside in sequence, at least two columns of slot groups are provided on the outer conductor, the columns of slot groups are distributed at different angles in the circumferential direction of the outer conductor, the included angle between two adjacent columns of slot groups is =/n, where is the target radiation width, n is the number of columns of slot groups, each column of slot groups includes a plurality of slot arrays periodically arranged in the axial direction of the outer conductor, the pitch of each column of slot groups is the same, the pitch phase of each column of slot groups on the same leakage cable section is consistent, and each slot array includes a plurality of slots.

A coaxial cable may include a center conductor having a first resistance, and dielectric material may be formed around the center conductor. An outer conductor may be coaxially formed around the center conductor and the dielectric material. The outer conductor may have a second resistance substantially equal to the first resistance, and at least one slot may be formed through the outer conductor. A jacket may be formed around the outer conductor.

A communication system and method for vehicles, particularly trains, are described with the vehicle having antenna sets. Each antenna set includes a plurality of antennas mounted onto a convex-shaped vehicle roof in which an axis of one antenna set is approximately perpendicular to an axis of another antenna set and in which the antenna sets are mounted below roof level of the convex-shaped vehicle roof A switching device is operable to switch between a first antenna configuration and a second antenna configuration based on a difference in measured signal power received at the antenna sets. The first antenna configuration is associated with a first stationary communication system of the plurality of stationary communication systems and a second antenna configuration is associated with a second stationary communication system of the plurality of stationary communication systems.

A technology is described for a repeater system. The repeater system can comprise a repeater and a power adaptor. The repeater can comprise a donor port, a server port, and one or more amplification and filtering paths coupled between the donor port and the server port. The power adaptor can be integrated with a server antenna. The integrated power adaptor can be configured to be coupled to a power supply and the server port to enable the repeater to receive power from the power supply and to communicate a signal between the server antenna and the server port.

In accordance with one or more embodiments, a surface wave launcher includes a launcher body configured to surround, at least in part, a transmission medium. A planar antenna includes a first antenna element, a second antenna element and an aperture, the first antenna element and the second antenna element having first portions on opposing sides of the launcher body and second portions on an aperture end of the launcher body, wherein the second portions are perpendicular to the launcher body and the transmission medium and wherein the planar antenna is configured to transmit and receive guided electromagnetic waves that propagate along the transmission medium without requiring an electrical return path. A reflector, configured to direct transmission and reception of the first guided electromagnetic wave to and from the aperture, is electrically coupled to the conductive launcher body on an end of the launcher body opposite to the aperture end of the conductive launcher body.