| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-frequency switch suitable for high frequency circuits such as high-frequency switch modules, etc., for handling signals in a plurality of frequency bands. SOLUTION: The high-frequency switch for switching over transmitter circuits and receiver circuits in a plurality of different transmission-reception systems comprises: an input/output for transmitting/receiving signals in the transmission- reception system; an input for inputting transmitted signals from the transmitter circuits in a first and second transmission-reception systems; a first output for outputting received signals in the first transmission-reception system to a receiver circuit; a second output for outputting received signals in the second transmission-reception system to a receiver circuit; a first transmission line laid between the input/output and the first output; a first band pass filter disposed in its latter stage; a voltage-driven switching element disposed between the output of the first transmission line and a ground; a second transmission line laid between the input/output and the second output; and a second band pass filter disposed in its latter stage. COPYRIGHT: (C)2004,JPO
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