Return Loss is defined as the ratio (in dB) of the reflected to incident signal due to impedance mismatch. Which of the following best states this definition?

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Multiple Choice

Return Loss is defined as the ratio (in dB) of the reflected to incident signal due to impedance mismatch. Which of the following best states this definition?

Explanation:
Return loss is about how much of the forward signal is reflected back when a line isn’t perfectly matched to its load. It quantifies the reflected signal relative to the incident signal, expressed in decibels. This tells you how severe the impedance mismatch is: the less reflection (higher dB value), the better the match and the cleaner the signal delivery. If there were no mismatch, there would be no reflected signal and the return loss would be effectively infinite. This is why the best description is the ratio, in dB, of the reflected signal to the incident signal. Insertion loss, noise from connectors, and delay describe different concepts and don’t capture the reflections caused by impedance mismatch.

Return loss is about how much of the forward signal is reflected back when a line isn’t perfectly matched to its load. It quantifies the reflected signal relative to the incident signal, expressed in decibels. This tells you how severe the impedance mismatch is: the less reflection (higher dB value), the better the match and the cleaner the signal delivery. If there were no mismatch, there would be no reflected signal and the return loss would be effectively infinite. This is why the best description is the ratio, in dB, of the reflected signal to the incident signal. Insertion loss, noise from connectors, and delay describe different concepts and don’t capture the reflections caused by impedance mismatch.

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