With 100 mW input power, the power measured at port 4 is 0 1 mW and 10 mW when port is terminated in a matched load and a short respectively. The directivity of the coupler shown in Fig.

With 100 mW input power, the power measured at port 4 is 0 1 mW and 10

1.	With 100 mW input power, the power measured at port 4 is 0 1 mW and 10 mW when port is terminated in a matched load and a short respectively. The directivity of the coupler shown in Fig.
A.	50 dB
B.	40 dB
C.	30 dB
D.	20 dB
Answer» D. 20 dB

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With 100 mW input power, the power measured at port 4 is 0 1 mW and 10 mW when port is terminated in a matched load and a short respectively. The directivity of the coupler shown in Fig.

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