RF L-Network Impedance Matching Calculator
Calculate 2-element reactive L-matching networks (series L - shunt C or shunt C - series L) to transform arbitrary complex load impedances to 50 ohms.
RF Impedance & Operating Frequency
MHz
e.g. 14.15 MHz (20m Ham Band)
Ω
Ω
Recommended Network Topology
LOW-PASS: SERIES L + SHUNT C
Series L (Source) + Shunt C (Load)
Transforms 50 Ω source to 200 Ω load with 1:1 SWR
Inductor (L)
0.974 µH
XL = +86.6 Ω
Capacitor (C)
97.4 pF
XC = -115.5 Ω
Network Quality Factor & Bandwidth
Loaded Quality Factor (Q):
1.73
Fractional 3dB Bandwidth:
8.17 MHz (57.7%)
Transformation Ratio:
4.00 : 1 (Step-Up)