ACTIVE INTEGRATE ANTENA MODULE FOR T-DMB/DAB RECEIVER

摘要

An active antenna module for a T-DMB/DAB(Terrestrial-Digital Multimedia Broadcasting/Digital Audio Broadcasting) receiver is provided to implement function and decoration by including an auxiliary antenna with characters and figures according to a consumer's taste at an end of an antenna. An antenna unit(10) has a conductive contact unit(16) at one end. A matching circuit unit adjusts a frequency and impedance of the antenna unit and removes noise of a low frequency signal received from the antenna unit to input the signal in a matched state. A low noise amplifying unit low-noise-compensation amplifies a high frequency signal from the matching circuit unit to a preset level to compensate for a gain. An automatic gain adjusting unit prevents a DMB/DAB receiver from being saturated due to a strong signal. A power unit supplies power. A casing(30) receives the matching circuit unit, the low noise amplifying unit, the automatic gain adjusting unit, and a PCB(Printed Circuit Board)(20) on which a circuit pattern of the power unit is implemented. A coaxial cable(40) electrically connects the PCB and the DMB/DAB receiver.