Ultra-wideband antenna having a band notch characteristic
US8115681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2006 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Mar 8, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q13/103
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention discloses an antenna for ultra-wideband (UWB) communication having a band-stop characteristic. According to an embodiment of the present invention, the UWB antenna is a patch antenna employing microstrip feeding. In order to expand a bandwidth at a low frequency band, a stub is formed in a radiating element. Furthermore, since steps are formed in a ground plane, an antenna characteristic at an intermediate frequency band can be improved and a UWB characteristic can be obtained. According to another embodiment of the present invention, the UWB antenna is a patch antenna employing microstrip feeding and has a recess formed in the ground plane, thereby implementing the UWB characteristic. The antenna of the present invention has an inverse U-shaped slot formed in the radiating element, thus implementing the band-stop characteristic at the UNII band. In addition, the antenna of the present invention has includes a ground plane having a small area and has omnidirectional radiating patterns accordingly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.