Perturbed square ring slot antenna with reconfigurable polarization
US8373609B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 9, 2009 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Apr 9, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/245
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A reconfigurable polarization antenna includes a microwave dielectric substrate having a ground plane that has a centrally located slot with five conducting patches, four of which form an evenly spaced apart perimeter group with a gap between each and the fifth, centrally positioned conducting patch. A conducting pad is positioned in each gap and is connected via a switch to the ground plane. A microstrip feed line including a short stub is positioned on the opposite side of the substrate and electromagnetically coupled to the slot. The polarization of the antenna is reconfigured by a selection of an on or off state of each of said switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.