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1. |
A microwave antenna with the absorbing cross-section area (A) and the power flux density (S) in the incident wave is employed as an absorber. The absorbed power (P) of the antenna is |
A. | \(\frac{A}{S}\) |
B. | \(\frac{S}{A}\) |
C. | SA |
D. | \(\frac{{S + 1}}{{A - 1}}\) |
Answer» D. \(\frac{{S + 1}}{{A - 1}}\) | |