This calculator allows you to determine the transformation ratio of an RF transformer from the primary and secondary impedances. It facilitates impedance matching between RF circuits to ensure maximum power transfer and reduce signal losses.
Useful for amplifier designers, RF engineers and radio frequency technicians working on matching networks and impedance conversion circuits.
Formulas
Np / Ns = √(Zp / Zs)
Ns / Np = √(Zs / Zp)
Explanation of formulas
- Zp is the primary impedance and Zs that of the secondary, expressed in ohms (Ω).
- The turns ratio determines how voltages and currents are transformed between the two sides of the transformer.
- Proper ratio ensures perfect match between transmitter and load, optimizing RF performance.
50 ohm to 200 ohm RF transformer
Input : Zp = 50 Ω, Zs = 200 Ω
Exit :
- Np/Ns = √(50/200) = 0.5
- Ns/Np = √(200/50) = 2
Benefits and uses
- Allows you to quickly calculate the ideal turns ratio for an RF transformer.
- Optimizes impedance matching in high frequency circuits.
- Reduces signal losses in amplifiers and antennas.
- Practical for designing wideband transformers and RF adapters.