Which statement accurately describes VSWR and impedance matching?

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Multiple Choice

Which statement accurately describes VSWR and impedance matching?

Explanation:
VSWR tells you how well the load on a transmission line matches the line’s impedance. When the load impedance exactly equals the line impedance, there are no reflections, the standing wave is minimized, and the VSWR is 1:1. That situation is the ideal impedance match, where all the transmitted power is delivered to the load. So the statement that describes a perfect impedance match is the one with a VSWR of 1:1. A VSWR of 2:1 or 3:1 means there are reflections due to mismatch, so they are not perfect matches. Impedance is directly related to VSWR, so saying VSWR is unrelated is incorrect.

VSWR tells you how well the load on a transmission line matches the line’s impedance. When the load impedance exactly equals the line impedance, there are no reflections, the standing wave is minimized, and the VSWR is 1:1. That situation is the ideal impedance match, where all the transmitted power is delivered to the load.

So the statement that describes a perfect impedance match is the one with a VSWR of 1:1. A VSWR of 2:1 or 3:1 means there are reflections due to mismatch, so they are not perfect matches. Impedance is directly related to VSWR, so saying VSWR is unrelated is incorrect.

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