| 摘要 |
Disclosed are a multimode power amplifier, also a method for implementing different work mode switching by the multimode power amplifier and a mobile terminal using the multimode power amplifier. The multimode power amplifier includes at least two stage amplification circuits, each stage amplification circuit is connected in serial way; each stage amplification circuit has at least one basic amplification unit array, the amplification unit array is composed of multiple basic amplification units in parallel way. Bias voltage of each basic amplification unit array is controlled independently. By configuring the bias voltage flexibly, the multimode power amplifier can implement the switching between saturation mode and linear mode, and meets the actual needs of multi-communication mode. In addition, the multimode power amplifier also has the advantages of lower cost, simple and flexible circuit, and easy realization. |
