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Printable version; Page information; Get shortened URL; ... English: A cutaway diagram of a coaxial cable. Date: 1 January 2012, 04:44 (UTC) Source: Coaxial_cable ...
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Coaxial cable, or coax (pronounced / ˈ k oʊ. æ k s /), is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric (insulating material); many coaxial cables also have a protective outer sheath or jacket.
English: Diagram of a hybrid fiber coaxial (HFC) network, the type of technology used in modern cable television networks. The cable signal originates at a regional headend , where many television channels are transmitted on an optical fiber cable, which is carried on utility poles or underground.
Current in the inner conductor is flowing into the page. Current in the outer conductor is flowing out of the page. No electric field exists inside the conductors, so the Poynting vector in the gray areas is zero. The magnetic fields of inner and outer conductors cancel outside of the cable, so the Poynting vector outside the cable is also zero.
Types of transmission line include parallel line (ladder line, twisted pair), coaxial cable, and planar transmission lines such as stripline and microstrip. [5] [6] The higher the frequency of electromagnetic waves moving through a given cable or medium, the shorter the wavelength of the waves. Transmission lines become necessary when the ...
Cutaway diagram of a shielded multicore cable with four cores each with three individual conductors. A multicore cable is a type of electrical cable that combines multiple signals or power feeds into a single jacketed cable. [1] The term is normally only used in relation to a cable that has more cores than commonly encountered. [2]