Coaxial Cables: How They Are Specified

Coaxial Cables: How They Are Specified

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Coaxial Cables: How They Are Specified

Coaxial cables are a kind of a signal transmission wire that is utilized to carry electrical signals between systems, devices or components. While standard electrical cable incorporates one or more wires through which an electrical current is, coaxial cable is employed to transmit radio frequency signals as a transverse electromagnetic wave. Coaxial cables are made up of an inner conductor surrounded by a dielectric layer, which is then enveloped in a tubular sandwich that includes additional layers of shielding and an outer protective jacket to prevent deterioration to the signal carrying components during installation or from environmental stresses. Coaxial cables are usually employed as transmission lines and can send high-frequency signals at low loss.

Coaxial Cables: How They Are Specified

The standard varieties of coaxial cable include:

  1. Flexible coaxial cable
  2. Hardline coaxial cable
  3. Rigid coaxial cable
  4. Twin coaxial cable
  5. Semi-rigid coaxial cable
  6. Formable coaxial cable
  7. Triaxial cable

Hardline coaxial cable

Hardline coaxial cable uses an inner conductor built of materials like copper, silver, aluminum, or steel. This kind of cable is usually larger in diameter than other coaxial cable classes. They are used in high-strength signal transmission.

Flexible coaxial cable

As the name suggests, flexible coaxial cable can move and flex as required to accommodate the application’s configuration and geometry. Conventional design for flexible coaxial cable uses a central metal conductor enclosed by a flexible polymer that works as the dielectric, with an outer jacket for protection from the external conditions.

Semi-rigid coaxial cable

The semi-rigid coaxial cable utilizes solid copper outer sheath with a dielectric of Polytetrafluoroethylene (PTFE). The copper cover usually produces superior shielding efficiency, and the dielectric properties provide enhanced high-frequency performance.

Formable coaxial cable

A substitute to semi-rigid coaxial cable is a formable coaxial cable. In this kind of cable, a flexible metal sheath is utilized, which can be reshaped and formed by hand the meet the wanted cable configuration needing any specialized tools.

Rigid coaxial cable

Rigid coaxial cable, even though it is named a rigid coaxial cable, the term rigid coaxial transmission line might be more appropriate given that cable is typically envisioned as being flexible or bendable. Rigid transmission lines are built and sold in flanged straight sections of a given fixed length. Because of this, a set of standard connectors is available to join the sections of transmission line together as required. Specialized braces and springs are utilized to allow for the differential expansion and contraction of the internal and outer copper tubes employed in the transmission line run.

Twinaxial cable

Twinaxial cables have two main conductors contained in the core with a single outer core and dielectric, In contrast to the traditional one conductor design of most coaxial cable types. Some benefits of twin axial cable are reduced cable loss, better protection from ground loops and capacitive fields, and a decrease in low-frequency magnetic noise. These cables are recommended for use in low-frequency digital and video applications.

Triaxial cable

Triaxial cables are coaxial cables to which an extra copper braid has been added. This braid works as a shield and is grounded.

If you would like to receive a quote for any of custom cables or connectors, please do not hesitate to contact us by sending an email to [email protected] or calling in the USA this phone number (682-325-1944)

Jessica Cardona


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