Near field communication
US8212735B2 · kind B2 · utility
5Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2009 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Jun 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q7/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Apparatus including: an antenna configured for efficient far field communication at a first frequency; an inductive element including a plurality of series-connected coiled portions, including a first coiled portion and a second coiled portion, wherein the inductive element is configured to provide near field communication at a second frequency; and at least one reactive element parallel connected between the first coiled portion and the second coiled portion, wherein the at least one reactive element has a lower impedance at the first frequency than at the second frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.