| 摘要 |
The present invention relates to a device for sharing a feeder of a mobile communication system, which can be small and applied to a small area by branching transmitted and received signals through three hybrid couplers having a branch line form. The device for sharing a feeder of a mobile communication system according to the present invention comprises: feeder coupling units (110, 120, 130) coupled to feeders of three different mobile communication companies; two antennas (Ant1, Ant2); a first coupler (140) for branching a signal, which is transmitted and received through one feeder coupling unit (110) and a first antenna coupling unit (Ant1), into 1/3 and 2/3 signals; a second coupler (150) for branching a signal, which is transmitted and received through the other feeder coupling units (120, 130), into 1/2 signals, connecting one 1/2 branch line to the first coupler (140), and connecting the other 1/2 branch line to a third coupler (160); and the third coupler (160) for branching a signal, which is transmitted and received through the first coupler (140) and the second coupler (150), into 1/2 signals and connecting one 1/2 branch line to a second antenna coupling unit (Ant2). |
