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2. Coaxial cable - Wikipedia

   en.wikipedia.org/wiki/Coaxial_cable

   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.

3. Differential signalling - Wikipedia

   en.wikipedia.org/wiki/Differential_signalling

   Differential signalling is a method for electrically transmitting information using two complementary signals. The technique sends the same electrical signal as a differential pair of signals, each in its own conductor. The pair of conductors can be wires in a twisted-pair or ribbon cable or traces on a printed circuit board.

4. Telegrapher's equations - Wikipedia

   en.wikipedia.org/wiki/Telegrapher's_equations

   The circuit shown in the bottom diagram only can model the differential mode. In the top circuit, the voltage doublers, the difference amplifiers, and impedances Z o (s) account for the interaction of the transmission line with the external circuit. This circuit is a useful equivalent for an unbalanced transmission line like a coaxial cable.

5. Twinaxial cabling - Wikipedia

   en.wikipedia.org/wiki/Twinaxial_cabling

   Twinaxial cabling, or twinax, is a type of cable similar to coaxial cable, but with two inner conductors in a twisted pair instead of one. [3] Due to cost efficiency it is becoming common in modern (2013) very-short-range high-speed differential signaling applications.

6. Characteristic impedance - Wikipedia

   en.wikipedia.org/wiki/Characteristic_impedance

   The characteristic impedance of coaxial cables (coax) is commonly chosen to be 50 Ω for RF and microwave applications. Coax for video applications is usually 75 Ω for its lower loss. See also: Nominal impedance § 50 Ω and 75 Ω

7. Ground loop (electricity) - Wikipedia

   en.wikipedia.org/wiki/Ground_loop_(electricity)

   These form a common-mode choke which inhibits unbalanced current flow, without affecting the differential signal. Coaxial cables used at radio frequencies may be wound several times through a ferrite core to add a useful amount of common-mode inductance. This limits the flow of unwanted high-frequency common-mode current along the cable shield.