parameters of coaxed
Answers
Coaxial cable, or coax (pronounced /ˈkoʊ.æks/), is a type of electrical cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield. Many coaxial cables also have an insulating outer sheath or jacket. The term coaxial comes from the inner conductor and the outer shield sharing a geometric axis. Coaxial cable was invented by English engineer and mathematician Oliver Heaviside, who patented the design in 1880.[1] Coaxial cable differs from other shielded cables because the dimensions of the cable are controlled to give a precise, constant conductor spacing, which is needed for it to function efficiently as a transmission line.
Oliver Heaviside invented coaxial cable in 1880
Contents
1 Applications
2 Description
3 Construction
4 Signal propagation
5 Connectors
6 Important parameters
6.1 Physical parameters
6.2 Fundamental electrical parameters
6.3 Derived electrical parameters
6.4 Choice of impedance
7 Issues
7.1 Signal leakage
7.2 Ground loops
7.3 Noise
7.3.1 Transformer effect
7.4 Common mode current and radiation
8 Standards
9 Uses
10 Types
10.1 Hard line
10.2 Radiating
10.3 RG-6
10.4 Triaxial cable
10.5 Twin-axial cable
10.6 Semi-rigid
10.7 Rigid line
10.8 Cables used in the UK
11 Interference and troubleshooting
12 History
13 See also
14 References
15 External links