Low SAR folded loop-shaped antenna
US9350077B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2013 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | May 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q5/357
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A low Specific Absorption Rate (SAR) gamma-folded loop-shaped antenna has a resonant structure including two arms connected to an elongated loop and has dual resonant elements in the 5 GHz WiFi band, dividing emissions in the 5 GHz bands between two emission hotspots. The elongated loop folds back upon itself 180 degrees. The antenna also may include a discontinuous transition in cross-sectional area tuned to boost emissions in the 2.4 GHz WiFi band. The antenna is designed for compact handheld devices that may be held close to a person's body, reducing the intensity of energy irradiated into the body in the 5 GHz band by distributing the energy across spatially-separated dual resonant elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.