Technical NotesUpdated: May 10, 2026•⏱ 5 Min Read
Return Loss vs VSWR: Understanding the Math
They measure the same mismatch; return loss is logarithmic, VSWR is a linear ratio.
Dr. Alexander Wright
Lead RF Engineer | 15+ Years Microwave Design Exp.
Definitions
Return loss expresses reflected power in dB. VSWR expresses the standing wave ratio along the line.
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