RF transformers

RF transformers are devices designed to transfer energy from one circuit to another by electromagnetic induction. RF transformers are typically used to increase or decrease the voltage from one side of the transformer to the other.
The turn ratio, or the number of windings on the primary and secondary sides of the transformer, will determine the change in voltage. RF transformers are used in low or high power circuits for impedance matching to achieve maximum power transfer, for voltage step-up, and for DC isolation of two circuits while maintaining AC continuity.