Broadband power amplifier device and transmitter

A broadband power amplifier device, applicable to a transmitter and having an input terminal connected to a mixer and an output terminal connected to an antenna, the broadband power amplifier device comprising an input matching network, a power amplifier, and an output matching network connected in sequence, wherein the input matching network comprises a first inductor, a second inductor, a third inductor, a driver amplifier, a first frequency modulator, a second frequency modulator, and a third frequency modulator;

• the first inductor having a first end connected to an output terminal of the mixer and a second end connected to one end of the first frequency modulator, with the other end of the first frequency modulator being grounded;
• the second inductor having a first end connected to the first end of the first inductor and a second end connected to an input terminal of the driver amplifier, with the second frequency modulator being connected across the second inductor;
• and
• the third inductor having a first end connected to an output terminal of the driver amplifier and a second end connected to an input terminal of the power amplifier, with the third frequency modulator being connected across the third inductor.