Analysis of two stacked cylindrical dielectric resonators in a TE102 microwave cavity for magnetic resonance spectroscopy

► An EPR probe consisting of two dielectric resonators in a TE102 cavity is designed. ► The role of the second dielectric resonator is to tune the frequency. ► Its frequency, field distributions and filling factors are calculated. ► The probe can be over coupled to lower its Q to ≈150 making suitable for pulsed EPR experiments.