CANCELLATION APPARATUS FOR TRANSMISSION LEAKAGE SIGNAL

摘要

PURPOSE: A cancellation apparatus for a transmission leakage signal is provided to configure a fixing delay unit in order to remove a transmission leakage signal of a wireless transmitter. CONSTITUTION: A first coupling unit(110) divides a transmission signal which is transmitted to an antenna that is outputted from a transmission unit. The first coupling unit transmits the divided signal to a reception end. A fixing delay unit(120) delays the phase of the divided signal that is divided through the first coupling unit. A coupler(130) converts the delayed signal into an IQ(In-phase/Quadrature-phase) signal. A first variable reduction unit(140) varies the amplitude of I/Q signal.