Dual-frequency band dual-input power amplification transmitter

The embodiment of the invention discloses a dual-frequency band dual-input power amplification transmitter. The power amplification transmitter includes a dual-frequency band input circuit which at least comprise two frequency band input ends and performs DPD processing on inputted baseband signals and outputs the processed baseband signals, a modulus obtaining circuit which performs modulus obtaining processing on the inputted baseband signals and outputting the processed baseband signals, a signal decomposition circuit which receives and decomposes the baseband signals inputted by the dual-frequency band input circuit and baseband signal modulus values inputted by the modulus obtaining circuit so as to obtain multiple paths of decomposed signals, and a modulation circuit which receives and processes the multiple paths of decomposed signals, and modulates two paths of signals which are obtained after processing onto a corresponding work frequency point, and outputs the two paths of signals at the corresponding work frequency point to a dual-frequency band power amplifier. With the above circuit structure adopted, a multi-input single-frequency band power amplifier is introduced to a dual-frequency scene; compared with a single-input dual-frequency band power amplifier, when the double-input dual-frequency band power amplifier parallelly transmits dual-frequency band signals, the overall transmitting efficiency of the dual-frequency band transmitter can be improved significantly.