摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a high-frequency switch circuit that can suppress second order harmonics and third order harmonics from a transmission terminal to an antenna terminal and from the transmission terminal to a reception terminal, and can prevent an increase of a transmission loss of a fundamental frequency from the transmission terminal to the antenna terminal. <P>SOLUTION: A high-frequency switch circuit has at least one or more first short stubs 51 connected to a transmission terminal 11 and having an approximate 1/4 length to an equivalent wavelength of a fundamental frequency of a high-frequency signal, at least one or more second short stubs 52 connected to the transmission terminal 11 and having an approximate 1/6 length to the equivalent wavelength of the fundamental frequency of the high-frequency signal, and at least one or more open stubs 53 connected to the transmission terminal 11. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |