Q.
定向耦合器是什么？
- RF产品 >
- 定向耦合器
A.
A directional coupler - It picks up a part of the output (typically about 1/100 of power, about -20dB in dB display) to constantly maintain and control
the output gain of the power amplifier (PA), and is responsible for providing the feedback function to the input of the PA.
