| 摘要 |
PURPOSE: An output end of a mobile communication system using an APD(Adaptive Pre-Distorter) synchronization combination method is provided to compensate for the distortion, modulation, and diminution of a mobile communication system capable of maintaining the linearity of an output signal in the mobile communication system. CONSTITUTION: An ISSFU-PBAR-SDR(Interference Suppression System Filter Unit-Polymer base Bulk Acoustic Resonator-Software Define Radio)(40) controls signals outputted from an operation amplifier. The ISSFU-PBAR-SDR increases an ACLR(Adjacent Channel Leakage power Ratio). The ISSFU-PBAR-SDR converts the signal into a predetermined gain and a frequency signal including power. A PA(Power Amplifier)(50) amplifies a signal outputted from the ISSFU-PBAR-SDR. The PA outputs the amplified signal to the antenna. [Reference numerals] (10) Multiple channels APD; (AA) Analog signal
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