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Impedance Matching Calculator

Calculate L-network, Pi-network, and T-network component values for impedance matching

Input Parameters
HzkHzMHzGHz
50 → 75 Ω50 → 300 Ω50 → 200 Ω75 → 300 Ω50 → 50 Ω
Zs
50 Ω
ZL
75 Ω
Impedance Ratio
1.50:1
Operating Frequency
100.000 MHz
Low-pass L-network

Series L (source side) + Shunt C (load side)

Q
0.707
L
56.2698 nH
C
15.0053 pF
Zs (50Ω) ──[L: 56.2698 nH]──┬── ZL (75Ω)
                             │
                        [C: 15.0053 pF]
                             │
                            GND
High-pass L-network

Series C (source side) + Shunt L (load side)

Q
0.707
L
168.8093 nH
C
45.0158 pF
Zs (50Ω) ──[C: 45.0158 pF]──┬── ZL (75Ω)
                               │
                          [L: 168.8093 nH]
                               │
                              GND
T-network
Q
0.829
L1 (Source)
65.9822 nH
C (Shunt)
22.3092 pF
L2 (Load)
42.2023 nH
Zs (50Ω) ──[L1: 65.9822 nH]──┬──[L2: 42.2023 nH]── ZL (75Ω)
                                    │
                               [C: 22.3092 pF]
                                    │
                                   GND
L-Network Formulas

Q = sqrt(R_high / R_low - 1) = sqrt(75 / 50 - 1) = 0.7071

Low-pass: X_L = Q x R_low, X_C = R_high / Q

High-pass: X_C = Q x R_low, X_L = R_high / Q

L = X_L / (2 x pi x f), C = 1 / (2 x pi x f x X_C)