| 摘要 |
A multi-antenna mobile phone data card for reducing a specific absorption rate includes: a radio frequency (RF) substrate, antennas, and a feed source connected between the RF substrate and 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 on which the first corner is located, the first hollow portion is provided with a first metal strip, having 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. |
