Antenna and manufacturing method therefor
US6127987A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1998 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | May 7, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/205
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna comprising the following members are provided: a first board-shaped dielectric material; a cylindrical member, provided on one face of the first board-shaped dielectric material, in which a part of a side wall may be cut off; plural second board-shaped members provided as radiating on the outer surface of the cylindrical member, one end face of each second board-shaped member being in contact with the surface of the first board-shaped dielectric material; and plural sets of plural pole members perpendicular to the surface of the first board-shaped dielectric material, made by forcing out corresponding portions of the first board-shaped dielectric material, the sets radiating from the outer surface of the cylindrical member and the plural pole members in each set being arranged in a line, and each set existing between two positional directions of the adjacent two second board-shaped members. The surface as one face of the first board-shaped dielectric material and the surfaces of each above member are coated with a conductive coating, by which the first board-shaped dielectric material, the cylindrical member, the second board-shaped members, and the pole members respecti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.