| 摘要 |
PURPOSE: Apparatus for duplexing a high-power amplifier in a mobile communication system is provided to enhance a system reliability of a system by duplexing a high-power amplifier into a main amplifier and a preliminary amplifier. CONSTITUTION: A duplexing device divides a high-power amplifier into outdoor part and indoor part. The indoor high-power amplifier receives audio data and power-supply, and transmits them. A first duplexing controller(100) senses an error, and removes attenuation quantity of an input value. A first high-power amplifier(200) amplifies audio data signal transmitted from the first duplexing controller, and outputs it. A fist bias-T part(300) applies audio data and a power-supply being transmitted from the first duplexing controller and the first high-power amplifier. The outdoor high-power amplifier includes a second bias-T part(400), and second duplexing controller(500), and a second high-power amplifier(200), and antenna(700). The second bias-T part receives a power-supply and audio data from the first bias-T part of the indoor high-power amplifier. A second duplexing controller receives a power-supply from the second bias-T part, senses an error, and transmits the error to the antenna. The second high-power amplifier amplifies audio data signal and a power-supply as a constant amplification degree. The antenna transmits audio data signal.
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