Question: A 20 dBm power source is connected to the input of a directional coupler having a coupling factor of 20 dB, a directivity of 35

A 20 dBm power source is connected to the input of a directional coupler having a coupling factor of 20 dB, a directivity of 35 dB, and an insertion loss of 0.5 dB. If all ports are matched, find the output powers (in dBm) at the through, coupled, and isolated ports.

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