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← ScienceWhich mechanism causes blooming when a high-power microwave signal exceeds transmitter design constraints?
A)Multipactor effect enhances secondary emission✓
B)Resistive heating causes waveguide oxidation
C)Plasma formation causes RF absorption
D)Reverse current induces avalanche breakdown
💡 Explanation
Blooming occurs because the multipactor effect avalanches the electron population via secondary emission, therefore increased signal amplification leads to uncontrolled oscillation at the waveguide, rather than simple overheating or circuit breakdown.
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