| 摘要 |
PURPOSE: A triplexer is provided to reduce influence of a power line possibly generated in case of using an active switch, enhance insertion loss and attenuation characteristics between bands, and minimize influence between bands. CONSTITUTION: A PCS RF unit(220) processes a PCS band signal as a call signal. A GPS signal processor(230) demodulates a GPS band signal and generates a three-dimensional terrestrial position information. A CDMA RF unit(240) processes a CDMA band signal as a call signal. A controller(250) reproduces a voice from a signal received from the CDMA RF unit(240) or from the PCS RF unit, and receives and processes the terrestrial position information. BPFs(Band Pass Filters)(211-213) perform a different band pass filtering with a signal received from an antenna, respectively, and separately generate the PCS band signal, the GPS band signal and the CDMA band signal as a result of the filtering.
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