| 摘要 |
A mobile wireless communications device may include transmit paths operating on respective different frequency bands, an antenna, and an antenna switch between the transmit paths and the antenna. The device may include a harmonic filter attenuating a harmonic frequency of a first frequency band of a first transmit path, and also attenuating a second frequency band of a second transmit path; a filter switch between the harmonic filter and the antenna; and a processor. The processor may selectively control the antenna switch and the filter switch so that when the antenna switch couples the first transmit path to the antenna, the filter switch couples the harmonic filter to the antenna, and when the filter switch couples the second transmit path to the antenna, the filter switch decouples the harmonic filter from the antenna. |
