When both input and output of an amplifier are matched to zero reflection (in contrast to conjugate matching), the transducer power gain is:

When both input and output of an amplifier are matched to zero reflect

1.	When both input and output of an amplifier are matched to zero reflection (in contrast to conjugate matching), the transducer power gain is:
A.	S<sub>21</sub> <sup>2</sup>
B.	S<sub>22</sub> <sup>2</sup>
C.	S<sub>12</sub> <sup>2</sup>
D.	\|S<sub>11</sub> <sup>2</sup>
Answer» B. S<sub>22</sub> <sup>2</sup>