Multi-band HAC compatible antenna module
US8115682B2 · kind B2 · utility
2Cited by
0References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2008 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Feb 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/526
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multi-band HAC compatible antenna module having a metal shield arranged around the built-in antenna for resonant coupling with the antenna to lower electromagnetic interference and to improves hearing aids compatibility characteristic. When compared with a reference antenna without metal shield, the multi-band HAC compatible antenna module shows 3 dB˜4 dB HAC improvement in GSM850 and GSM900, and 1 dB HAC improvement in DCS and PCS bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.