Antenna device
US11296400B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2019 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Nov 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q13/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna device includes a ground plane that includes an edge and a surface, a protruding metallic member that includes a first connecting part and a second connecting part coupled to the ground plane, protrudes from the edge, and constructs a first loop including the edge, and a T-shaped antenna element that extends from a feeding point to a first end and a second end along the edge, the feeding point being disposed in the vicinity of the surface between the first connecting part and the second connecting part of the first loop, wherein a length of the first loop corresponds to an electric length of one wavelength in a first frequency, and corresponds to an electric length of two wavelengths in a second frequency that is a second order harmonic of the first frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.