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VSWR (Voltage Standing Wave Ratio) for matched load (R_L = Z_0):
A0
B∞
C1.0 (no standing wave; all power absorbed by load)
D2
Answer & Solution
Correct answer: C. 1.0 (no standing wave; all power absorbed by load)
VSWR = V_max/V_min. Matched: VSWR = 1 (ideal). Open or short: VSWR = ∞. Higher VSWR → more reflection, less transferred power, possible damage to transmitter. Reflection coefficient Γ: |Γ| = (VSWR-1)/(VSWR+1).
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