Microstrip antenna structure having stacked microstrip elements
US4329689A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 10, 1978 |
| Grant date | May 11, 1982 |
| Priority date | — |
| Expiry date | Oct 10, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q5/385
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The structure includes a ground plane and at least two stacked microstrip elements with each microstrip element comprising a conducting plane and a layer of dielectric material. The conducting planes and the intermediate dielectric layers are configured so that they resonate at closely spaced frequencies. Each conducting plane in the structure, except the top one, includes an opening which is large enough to permit sufficient electric field coupling to occur between the microstrip elements so that the individual response characteristics of the conducting planes merge to form a broadband response characteristic. The antenna of the present invention thus has a substantially improved bandwidth over prior art microstrip antennas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.