RF FRONT AND MODULE CONSTITUTING THE MULTIBAND COMMUNICATIONS MODULE USING A MEMS (MICRO ELECTRONIC MECHANICAL SYSTEM) SWITCH OR A DPDT (DOUBLE-POLE DOUBLE-THROUGH) SWITCH

摘要

PURPOSE: An RF front and module and a multiband communications module using the same are provided to constitute a front end by a diplexer and a bandpass filter thereby improving band attenuation characteristic.;CONSTITUTION: A plurality of BPFs(Band Pass Filters)(211~215) passes the preset band signal. The plurality of BPFs is connected to a front end of at least one of diplexers(221~223). The at least one of diplexers includes a dual input port and a single output port. A rear end of two BPFs among a plurality of BPFs is connected to the dual input port. The degradation of the insertion loss characteristic is prevented.;COPYRIGHT KIPO 2011