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buta said:directional coupler is a 4 ports network.
Power supplied from port 1 is transmitted to port 2 and a small amount of energy is coupled to port 3.
Power supplied from port 2 is transmitted to port 1 and a small amount of energy is coupled to port 4.
it is still a directional coupler just a single direction rather than bi-directionalbuta said:Power supplied from port 1 is transmitted to port 2 and a small amount of energy is coupled to port 3.