| 摘要 |
<p>In a first high-frequency switch (204), a current path (IL1) and a current path (IL2) are connected in parallel. When a positive voltage is applied to a control terminal (Vc2), the current flows through the path of (Vc2) ? (DR) ? (DSL1) ? (DD1) ? (GSL2) ? (DL) and the path of (Vc2) ? (DR) ? (DD2) ? (DL). In a second high-frequency switch (207), a current path (IL3) and a current path (IL4) are connected in parallel. When a positive voltage is applied to a control terminal (Vc3), the current flows through the path of (Vc3) ? (PR) ? (DSL1) ? (DD1) ? (GSL2) ? (DL) and the path of (Vc3) ? (PR) ? (DD2) ? (DL). With this, transmission signals are allowed to be switched over at a low control voltage to prevent the deterioration of an insertion loss characteristic or a harmonic distortion characteristic.</p> |
