IMD ELIMINATION SYSTEM REDUCING WASTE OF RESOURCES ACCORDING TO DUPLICATION OF A DEVICE

摘要

PURPOSE: An IMD(Inter modulation Distortion) elimination system is provided to use may frequency in common by removing a PIMD(Passive Inter modulation Distortion) signal, thereby enhancing the efficiency of using frequency.;CONSTITUTION: A multiplexer(400) receives a signal of difference frequency from base stations(200,300). The multiplex transmits ROU(Remote Optic Unit, RF Outdoor Unit)(350) through MHU(Main Hub Unit)(100). A duplexer(470) combines a WCDMA(Wideband Code Division Multiple Access) TX and WIBRO(Wireless Broadband) DL/UL. A filter unit for interference signal removal(430) removes a IMD signal of the duplexer. The second duplexer(420) combines a part of combining WCDMA TX and WIBRO DL/UL signal which an interference signal is removed and a WCDMA RX part(422).;COPYRIGHT KIPO 2011