Movable antenna for wireless equipment
US6788270B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2002 |
| Grant date | Sep 7, 2004 |
| Priority date | — |
| Expiry date | Aug 13, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q11/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Antennas and methods of manufacturing and using antennas suited for use in mobile devices are described. The described antennas include an antenna arm (104) and a conical spring radiating element (108) attached to one end of the arm. The spring radiating element (108) is covered by a protective cap (106) and can be compressed to fit inside the cap (106) for easy storage in a PC card. The antenna arm (104) may be implemented as a layered circuit board. In some embodiments the antenna arm (104) includes a radiating element, e.g., a conductive strip (1304), positioned along an edge of the arm (104) which will remain exposed even when the antenna is inserted into a PC card for storage. In various embodiments the spring radiating element (108) automatically extends when the antenna arm (104) is switched from a storage position to an active position, e.g., by pulling on the antenna arm to cause it to slide or swing out of a housing (102).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.