An experimental study has been carried out to model and to measure the resonance frequency shift introduced by inserting a small microwire segment in an open resonator. A hybrid frequency synthesizer based on a Gunn diode was used to perform measurements. The open resonator was excited using this hybrid frequency synthesizer together with a Schottky diode detector used to measure a resonance curve. The results have shown a small difference between the model and the measured frequency shifts of the small microwire segment using the hybrid frequency synthesizer and the open resonator in the 3 mm wavelength band.
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Shansho, A., Dorofeev, I.O., Dunaevskii, G.E. et al. Investigation of Small Scatterers by the Resonator Method in the Subterahertz Frequency Range. Russ Phys J 66, 573–578 (2023). https://doi.org/10.1007/s11182-023-02977-2
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DOI: https://doi.org/10.1007/s11182-023-02977-2