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← ScienceWhich risk increases when transmitting data using millimeter waves near conductive structures?
A)Signal impedance mismatch✓
B)Increased phase modulation index
C)Reduced signal bandwidth
D)Lower thermal noise floor
💡 Explanation
Reflection and scattering increase near conductive structures interacting with waves; this induces destructive interference because the reflection coefficient changes rapidly near discontinuities, therefore, a strong signal impedance mismatch arises, rather than phase changes, decreased bandwidth, or noise effects.
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