Multi-band signal integrated amplification method, amplifier and antenna

A multi-band signal integration amplifier, comprising:

• a first signal processing circuit including
• a first signal input terminal used to input an FM and VHF signal,
• a first matching isolation circuit used for impedance matching and isolation of the FM and VHF signal, and
• a low-pass filtering circuit used to filter the FM and VHF signal,
• wherein the first signal input terminal, the first matching isolation circuit and the low-pass filtering circuit are sequentially connected;
• a second signal processing circuit including
• a second signal input terminal used to input a UHF signal,
• a second matching isolation circuit used for impedance matching and isolation of the UHF signal, and
• a high-pass filtering circuit used to filter the UHF signal,
• wherein the second signal input terminal, the second matching isolation circuit and the high-pass filtering circuit are sequentially connected;
• an amplifying circuit used for amplifying the FM and VHF signal and the UHF signal, including
• an amplifying circuit input, and
• an amplifying circuit output,
• wherein the low-pass filtering circuit and the high-pass filtering circuit are connected to the amplifying circuit input;
• a signal distributing circuit connected to the amplifying circuit output for shunt outputting an amplified signal, including
• a first signal output terminal for outputting an FM/VHF/UHF signal, and
• a second signal output terminal for outputting the FM/VHF/UHF signal or a VHF/UHF signal;
• a gain control circuit, with an end connected to the signal distributing circuit for adjusting the gain;
• and
• a power supply, which is connected to the amplifying circuit output and the other end of the gain control circuit and is designed to supply power to the amplifying circuit and the gain control circuit.