The properties of an ideal directional coupler are as follows. All the terminations are matched to the ports. When the power travels from Port 1 to Port 2, some portion of it gets coupled to Port 4 but not to Port 3. As it is also a bi-directional coupler, when the power travels from Port […]

RF directional couplers are electronic items that couple a defined amount of the electromagnetic power in a transmission line to a port enabling the signal to be used in another circuit. One key feature of directional couplers is that they only couple power flowing in one direction. In this way, power entering the output port […]