Communication cable of high capacity
US7718896B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2008 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Mar 21, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B11/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In communication cable of high capacity according to present invention, conductor of diameter d is coated by insulation material to form wire of diameter D, plural number of said wire are twisted by pitch p to form pairs, plural number of said pairs are twisted by collective pitch P, and said communication cable of high capacity comprise sheath wrapping said pairs, and the diameter d of said conductor and diameter D of said wire and pitch p and collective pitch P and impedance of said wires are defined by function of compensation coefficient A (81<A<83) by dielectric constant of insulation member and magnetic permeability of conductor, compensation coefficient B (0.005<B<0.007) by pitch (p) and collective pitch (P). And, by impedance matching between impedance of wire and impedance of equipment for data transmission, return loss of cable can be minimized, so high speed data transmission can be made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.