Voltage Standing Wave Ratio (VSWR) is a measure of the efficiency of power transmission in a transmission line, defined as the ratio of the maximum voltage to the minimum voltage along the line. A high VSWR indicates poor impedance matching, leading to increased reflection of power back toward the source instead of being transmitted to the load. This concept is crucial for understanding how energy flows in transmission lines, the behavior of coaxial transmission lines, and the importance of impedance matching in minimizing losses.
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