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Which radio frequency (RF) interference outcome increases when antenna impedance mismatches occur?

A)Signal reflection and standing waves
B)Increased antenna radiation efficiency
C)Lower thermal noise figure
D)Improved impedance conjugate matching

💡 Explanation

Increased signal reflection and standing waves emerge because impedance mismatches cause a portion of the transmitted signal to bounce back to the source due to the impedance mismatch 'reflection coefficient'. This creates interference, therefore undesirable reflections appear, rather than desired wave propagation.

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