LiTaO/sub 3/ lateral field resonators

Abstract
High overtone lateral field resonators, fabricated on -16.5 degrees rotated Y-cut LiTaO/sub 3/ plates, were examined for high-Q operation in the frequency range between 300 MHz and 1000 MHz. QF products of up to 5*10/sup 13/ for unmounted plates and for hard-mounted plates have been measured. The QF product is higher than can be achieved with quartz, and the self-noise levels of these resonators compare favorably with those of the lowest-noise SAW (surface acoustic wave) resonators. The electrode design of these energy-trapped resonators is discussed.<>

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