Phased array antenna having patch antenna elements with enhanced parasitic antenna element performance at millimeter wavelength radio frequency signals
US6421012B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Jul 19, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/0087
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phased array antenna includes an antenna housing having an array face defining an electrically conductive ground plane layer. A plurality of millimeter wavelength patch antenna elements are positioned on the array face and each include a primary substrate having front and rear sides and a driven antenna element positioned on the front side of the primary substrate. A ground plane layer is positioned on the rear side of the primary substrate and a dielectric layer is positioned on the ground plane layer. A microstrip quadrature-to-circular polarization circuit is positioned on the dielectric layer. A parasitic antenna element layer is spaced forward from the driven antenna element and at least one spacer is positioned between the parasitic antenna element layer and the primary substrate. This spacer is dimensioned for enhanced parasitic antenna element performance at millimeter wavelength radio frequency signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.