| 摘要 |
<p>A high-frequency module with a filter, which can be miniaturized, exhibits an adequate amount of out-of-band attenuation, and can effectively suppress the out-of-band spurious. In a high-frequency module (1), an RF circuit part is provided on a first substrate (2), a high-frequency element is mounted on a second substrate (3), a line connecting the high-frequency element and the RF circuit is provided with a transmission line (9) and a wiring line (17), the impedance of the transmission line (9) is made lower than the impedance of the wiring line (17), and the input impedance Z<SUB>S11</SUB> when viewed from the side of the wiring line (17) of the transmission line (9) is made higher than the input impedance Z<SUB>S22</SUB> when viewed from the side of the high-frequency element of the transmission line (9).</p> |
