| 摘要 |
PROBLEM TO BE SOLVED: To provide a diversity receiver front end system including an amplifier post-stage filter.SOLUTION: A reception system 400 includes a controller 120 configured to selectively activate one or more of a plurality of paths, between the input of an input multiplexer 311 and the output of an output multiplexer 312. Each of a plurality of amplifiers 314a-314d can be provided along one corresponding path, out of the plurality of paths, and amplifies a signal received by the amplifier. The reception system 400 includes amplifier prestage bandpass filters 413a-413d. Each of the bandpass filters 413a-413d is provided at the output of one corresponding amplifier, out of the plurality of amplifiers 314a-314d, along one corresponding path, out of the plurality of paths, and filters a signal received by the bandpass filter 413a-413d to each frequency band.SELECTED DRAWING: Figure 4A |
