Miniaturized antenna for converting an alternating voltage into a microwave and vice versa, notably for horological applications
US5646634A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1995 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Oct 19, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/0407
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention concerns a linearly or circularly polarized antenna, comprising a dielectric substrate and a conductive element fixed on the dielectric substrate and being delimited at its periphery by an edge which confers to this element a double planar symmetry along two perpendicular axes. In one embodiment, the conductive element includes an excitation point located on a first axis and a first pair of slots which extends along the second of the axes from the periphery towards the center of the conductive element. In another embodiment, the conductive element includes an excitation point which is located on a third axis by bisecting the angle formed between the first and second axis and having two pair of slots which extend respectively along the first and second axis, from the periphery towards the center of the conductive element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.