Antenna apparatus having four inverted F antenna elements and ground plane
US9379452B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 18, 2014 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Jul 1, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna apparatus includes a ground plane having a rectangular shape in plan view, and four inverted F antenna elements configured to be placed on a surface of the ground plane and to be arranged in a symmetrical manner with respect to the central point of the ground plane in plan view, wherein each of the four inverted F antenna elements includes a short strip extending from one end of a main strip to the short end, a feeding strip, an open strip configured to extend toward the open end from the other end of the main strip to a position placed at a second height lower than the first height, and an end strip configured to extend from a distal end of the open strip to the open end and placed parallel to the ground plane at the second height.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.