Question: A four port passive device used for coupling a known fraction of the microwave power to a port, which has 10 dB coupling and the

A four port passive device used for coupling a known fraction of the microwave power to a port, which has 10 dB coupling and the ratio of forward power to the back power is 40dB, produces a transmission loss of 1dB. For an input power of 10 mW at the input port of the main arm, determine the power at the other ports.

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