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Which consequence results when dielectric material imperfections increase in microwave waveguides?

A)Increased signal attenuation via dielectric losses
B)Higher characteristic impedance of the line
C)Reduced skin effect near conductor surfaces
D)Enhanced signal group velocity dispersion

💡 Explanation

Increased imperfections cause energy dissipation due to increased polarization relaxation losses, thus promoting signal attenuation because Electromagnetic wave energy is lost to heat, therefore attenuation rises, rather than changes to impedance or velocity.

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