High performance data cable
US6815611B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Jun 21, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B11/1025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved high performance twisted pair data cable (20) than has an impedance standard deviation of less than 3.5 when the standard deviation is calculated around an average impedance of 50 to 200 ohms and preferably 90 to 110 ohms. The twisted pair is helically wrapped with a metal shield tape (16) at a tension that provides a cross-sectional void of less than 25% and preferably less than 18% of the cross-sectional area of the shielded twisted pair cable. The tape is helically wrapped with an overlap of 30-45% and at an angle of 35-45 degrees with respect to the longitudinal axis of the cable. The cable has a rating up to 600 MHz.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.