| 摘要 |
A broadband mobile phone antenna with a parasitic antenna and a mobile phone thereof are disclosed in the present invention, said mobile phone antenna includes: a main antenna and the matching circuit thereof, a first antenna switch connected with said main antenna and the matching circuit thereof; said first antenna is used to perform frequency band switching. Said mobile phone antenna also includes: the parasitic antenna, at least two second matching circuits, and a second antenna switch connected with said parasitic antenna and said second matching circuits; said parasitic antenna is set on one side of said main antenna; said second antenna switch is controlled by a mobile phone base band chip, used to make said parasitic antenna switching between said second matching circuits. In the present invention, the intention of making the mobile phone satisfying the requirements of different working frequency bands is enabled by making the coupling of the parasitic antenna and the main antenna influencing the resonant frequency of said main antenna, by changing the load character of the parasitic antenna. The working band of the mobile phone antenna is extended, and simultaneously the performance of the mobile phone antenna is significantly improved. |
