Linear polarization planar microstrip antenna array with circular patch elements and co-planar annular sector parasitic strips
US6999030B1 · kind B1 · utility
7Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 27, 2004 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Oct 27, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/065
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A planar microstrip antenna includes one or more aperture-fed circular patch radiating elements capacitively coupled to respective parasitic strip elements. The circular patches are symmetrically disposed above respective ground plane apertures, and the parasitic strip elements are annular sectors that are co-planar and concentric with the circular patches, and placed adjacent to the periphery of each circular patch. The disclosed geometry enhances the input impedance bandwidth, and significantly reduces off-boresight radiation variability to provide beam directivity that is more uniform over both frequency and direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.