First results of numerical and physical experiments for the ring waveguide resonator on surface acoustic waves are presented. The structure consists of a gold interdigital transducer in the form of a ring placed on the cut of aluminum nitride crystal. Excitation of radial modes is investigated. The electrical admittance frequency dependence of such resonator does not have sidelobes. A high quality factor is achievable.
Ring waveguide resonator on surface acoustic waves: First experiments
S. V. Biryukov, H. Schmidt, A. V. Sotnikov, M. Weihnacht, T. Yu. Chemekova, Yu. N. Makarov; Ring waveguide resonator on surface acoustic waves: First experiments. J. Appl. Phys. 15 December 2009; 106 (12): 126103. https://doi.org/10.1063/1.3272027
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