| 摘要 |
<P>PROBLEM TO BE SOLVED: To realize a high-frequency module that can be further downsized even when a plurality of communication signals are shared by one antenna via a switch IC. <P>SOLUTION: A high-frequency module 10 has a switch IC 11. An antenna side filter 12 is connected to a common terminal PIC0 of the switch IC 11 on an antenna 20 side. The antenna side filter 12 is a low-pass filter that uses the high-harmonic frequency band of a GSM1800/1900 transmission signal and a TDS-CDMA transmission signal as an attenuation band. An individual terminal side filter 13 is connected to an individual terminal PIC11 of the switch IC 11. The individual terminal side filter 13 is a low-pass filter that uses the high-harmonic frequency band of a GSM850/900 transmission signal as an attenuation band. <P>COPYRIGHT: (C)2012,JPO&INPIT |
