One resonance, three views: S11 in dB, on the Smith chart, and as VSWR

Resonance \(f_0\) 900 MHz

\(R\) at resonance 70 Ω

Antenna \(Q\) 10.0

marker \(f\)–

\(Z\)–

\(\lvert S_{11}\rvert\)–

VSWR–

BW (VSWR ≤ 2)–

Drag or hover across either plot to move the marker — it tracks the same frequency on both.