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← ScienceWhich outcome results when a radio antenna near a high-power transmission line experiences extreme impedance mismatch?
A)Increased signal-to-noise ratio achieved
B)Antenna overheating via dielectric heating✓
C)Improved transmitter power efficiency
D)Reduced electromagnetic field emission
💡 Explanation
Antenna overheating arises because the large impedance mismatch causes reflected power back into the antenna elements; this induces dielectric heating as the material polarizes under the intense oscillating fields; therefore, overheating occurs, rather than increased efficiency or signal quality from proper power outflow.
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