De-tuning tolerant loop antenna
US10756434B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 11, 2018 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Mar 9, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/52
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A loop antenna is described herein that is suitable for operation in free space or in proximity to a ground plane. The loop antenna comprises a looped conductive element with a gap formed therein and a tab extending toward the gap. A length of the tab of the loop antenna is selected such that a detuning loss of the loop antenna from operation in free space to operation in proximity to a ground plane is low. In an exemplary embodiment, the length of the tab is selected such that a reactance of the loop antenna in free space is within a threshold level of a reactance of the loop antenna when the antenna is in proximity to a ground plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.