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← ScienceWhich consequence results when a microwave cavity sustains excessive multipactor effect?
A)Increased dielectric constant of material
B)Resonance frequency experiences unwanted shift✓
C)Improved standing wave power ratio
D)Waveguide experiences reduced signal attenuation
💡 Explanation
The resonance frequency shifts because the multipactor effect causes oscillating electrons to impact the cavity walls, releasing secondary electrons; therefore, the effective capacitance changes, shifting the frequency, rather than other properties.
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