Active reduction of electric field generated by a transmit antenna via an auxillary antenna structure
US8643551B2 · kind B2 · utility
2Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2009 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Apr 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/29
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless communication device and method includes an auxiliary antenna that can actively cancel at least a portion of a near-field component of an electric field generated by a main transmit antenna. The auxiliary antenna can help comply with specific absorption rate requirements and can reduce undesirable signal rectification in hearing aid components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.