Antenna device
US7187328B2 · kind B2 · utility
34Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2002 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Oct 25, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q19/22
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an antenna device having a substantially conical conductive member, having upper and lower sides made open, erected in a substantially vertical direction around a substantially circular microstrip patch provided on the upper side of a substantially circular substrate, the lower opening portion of the conductive member is grounded to a ground plate provided on the lower side of the substrate, and the diameter of the upper opening portion of the conductive member is larger than the diameter of the lower opening portion of the conductive member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.