| 摘要 |
<p>Disclosed is a high frequency switch wherein a first switch circuit (22a) is connected in series to a first ?/4 signal transmission path (18a) connected between an antenna connecting terminal (14) and a transmission terminal (16). In the first switch circuit, a first ?/4 transmission path (24a) and a first parallel resonant circuit (26a), which includes one first PIN diode (28a), are connected in series. In a first inductor (30a) of the first parallel resonant circuit (26a), a constant is set so that a resonance frequency of the first parallel resonant circuit (26a) and the center frequency of a first antenna switch (10A) are the same when the first PIN diode (28a) is turned off.</p> |
