Multi-antenna mobile phone data card and method for reducing specific absorption rate
US9137349B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2011 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Dec 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/72412
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a multi-antenna mobile phone data card and method for reducing a specific absorption rate, where the data card includes: a radio frequency (RF) substrate, antennas configured to transmit and receive signals, and a feed source, connected between the RF substrate and the antennas, configured to excite the antennas, the RF substrate has a rectangular shape, and the feed source is arranged at a first corner of the RF substrate, a first hollow portion is arranged at a second corner which is adjacent to the first corner and is located on a short side of the RF substrate on which the first corner is located, the first hollow portion is provided with a first metal strip, the first metal strip has an end connected with the short side, and another end as a free end, a first electrical length formed from the feed source to the free end of the first metal strip is equal to a second electrical length formed from the feed source to another short side along a long side on which the first corner is located. According to the present disclosure, through the method of changing the shape of the RF substrate, the same electrical lengths is obtained from the feed source r…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.