Coaxial cable, method for manufacturing a coaxial cable, and wireless communication device
US6523252B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1998 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Oct 21, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49162
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a coaxial conductor having an inner conductor (S), an outer conductor (U) encasing the inner conductor (S) at least partly, and a dielectric (E) placed between the two. The coaxial conductor (K) is formed in a multi-layer circuit board (M) primarily by means of vias (2a-2h) and strip conductors (1a-1i). According to an embodiment of the coaxial conductor of the invention, the inner conductor (S) is formed substantially parallel to the board layers (3a-3e) of the multi-layer circuit board (M), the inner conductor (S) is formed of at least one strip conductor (1a, 1b) or at least one electroconductive via (2a) or a combination of the same, and the outer conductor (U) is formed of at least four electroconductive vias (2b-2h) and at least two strip conductors (1c-1i). The dielectric (E) is at least partly formed of the material of the board layers (3a-3e). The invention relates also to a method for manufacturing this coaxial conductor. The invention relates further to a wireless communication device having at least one multi-layer circuit board (M) and at least one of these coaxial conductors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.