| 摘要 |
<p>The present invention provides a coupler (10) and a power amplifier system. The main signal line of the coupler (10) is an impedance transformation line. The power amplifier system includes a power amplifier module (710) and a coupler (10), wherein the main signal line of the coupler (10) is an impedance transformation line. The coupler (10) is connected to the power amplifier module (710) via the main signal line for coupling the high-power signal output from the power amplifier module (710) and transforming the output impedance of the power amplifier module (710) into the preset impedance required by the system. The coupler (10) in the present invention has the functions of impedance transformation and power coupling, and is applicable to the system requiring impedance transformation and power coupling at the same time, so that the wiring space and the link insertion loss of the system can be reduced.</p> |
