![RF Coupler - Model C9270W](https://werlatone.com/wp-content/uploads/2018/09/C9270W.png)
Uni-Directional Couplers
A 3-Port Uni-Directional Coupler consists of a main line and a coupled line. One end of the coupled line is internally terminated, while the other end serves as a coupled port.
Ideal for sampling and monitoring power in one direction at a given time. It is necessary to physically reverse the orientation of the unit to change from a forward to a reverse power measurement
![](https://werlatone.com/wp-content/uploads/2018/08/uni_directional_couplers.png)