| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a high frequency module of a smaller size which is used for a communication device for a wireless LAN and can process transmission signals and reception signals of a plurality of frequency bands. <P>SOLUTION: A high frequency module 1 comprises a switch circuit 10 connected to antenna terminals ANT1 and ANT2, a diplexer 11 connected to reception signal terminals RX1 and RX2 and the switch circuit 10, and a diplexer 12 connected to transmission signal terminals TX1 and TX2 and the switch circuit 10. The diplexer 11 comprises two bandpass filters 20 and 30 and a lowpass filter 40. The diplexer 12 comprises two bandpass filters 50 and 60 and a lowpass filter 70. The bandpass filters 20, 30, 50 and 60 are constituted of resonance circuits. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
