This calculator determines the characteristic impedance of a quarter-wave transformer used to match two transmission lines with different impedances, ensuring minimal signal reflection and maximum power transfer.
Formula
Z₀ = √(ZL × Zin)
Formula Explanation
- ZL is the load impedance in ohms.
- Zin is the input impedance in ohms.
- Z₀ represents the required transformer impedance for perfect matching.
Example
Input: ZL = 100 Ω, Zin = 50 Ω
Result: Z₀ = √(100 × 50) = 70.71 Ω
Who uses it
Helpful for RF designers and engineers working on transmission line impedance matching and antenna feed systems.