Calculators » RF and Microwave » RF Transformer Calculator

RF Transformer Calculator

rf transformer impedance calculation ratio

This page provides information about RF transformer calculators and their applications. The most common core used for RF transformers is the toroid.

A toroid is a circular, doughnut-shaped core usually made of a special type of powdered iron material. To create an RF transformer, copper wire is wound on the toroid to create both primary and secondary windings.

Inputs

Outputs

EXAMPLE:

  • Input impedance = 5 Ω
  • Output impedance = 50 Ω
  • Ratio of Np to Ns = 0.316

Hence, Primary turns are 3.16 times more than the Secondary turns.

RF Transformer Equation

The following equation or formula is used for the RF Transformer calculator:

RF Transformer equation for calculator