Dual-frequency stacked patch antenna
US9673526B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2015 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Jan 25, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention is directed to a dual-frequency stacked patch antenna. In one embodiment, the antenna comprises a pair of electrically conductive, nested, tub-like structures and a feed surface. The edges of the tub-like structures and the feed surface define a surface that is adapted to be conformal to an application surface that defines a cavity in which the antenna is positioned. The edges of the tub-like structures and the edge of the feed surface define a pair of slots for receiving and/or transmitting two signals with different center frequencies. Located and extending throughout each of the slots is a slot modification structure comprised of inter-digitated fingers that provide capacitive loading and enhance the low observability of the antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.