Multi-mode wireless antenna configurations
US11316271B2 · kind B2 · utility
0Cited by
85References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2021 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Feb 12, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/79
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Various embodiments of a multi-mode antenna are described. The antenna is preferably constructed having a first inductor coil and a second inductor coil. A plurality of shielding materials are positioned throughout the antenna to minimize interference of the magnetic fields that emanate from the coils from surrounding materials. The antenna comprises a coil control circuit having at least one of an electric filter and an electrical switch configured to modify the electrical impedance of either or both the first and second coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.