Dual polarization planar array antenna and cell elements therefor
US7994998B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 11, 2010 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Jan 11, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An RF antenna structure (e.g., a planar array) includes at least one radiation cell (and typically many, e.g., 16 or 32 or 64, etc.) having a conductive enclosure and an upper probe and a lower probe located at different heights within the enclosure. The enclosure between the upper probe and a bottom of the cell has at least two different cross-sectional areas. The upper and lower probes are preferably oriented at substantially 90° relative to each other. An upper portion of the enclosure beneath the upper probe may have a larger dimension than a lower portion such that the upper portion allows propagation of waves generated by the upper probe in a predetermined frequency band while the lower portion (e.g., above the lower probe) does not substantially allow propagation of waves generated by the upper probe, in the predetermined frequency band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.