A resonator system and method are provided which includes/uses a tunable
reference resonator, parts for tuning the reference resonator to a
reference value via a controlled variable for the reference resonator, a
tunable circuit resonator, and parts for tuning the circuit resonator
which are designed such that the controlled variable for the reference
resonator is used as a measure of the tuning of the circuit resonator,
and wherein the reference resonator and/or the circuit resonator is/are
designed as a surface acoustic wave component, a bulk acoustic wave
component and/or a diaphragm oscillator.