QUARTZ RESONATOR Russian patent published in 2010 - IPC H03H9/19 

FIELD: radio engineering.

SUBSTANCE: resonator has increased limit of allowable dissipated power. Quartz resonator includes the first piezoelectric element in the form of quartz plate to one plane of which there applied is the first film electrode electrically connected through elements of holder to the first external output of resonator; piezoelectric element is arranged in vacuum-treated housing; at that, on the side free from film electrode at the distance of not more than 40 mcm there arranged is the second piezoelectric element to which there applied is the second electrode; the first piezoelectric element and the second piezoelectric element face each other by means of planes without electrode; gap between piezoelectric elements is formed with film coatings in the form of local islands applied to the first piezoelectric element on its peripheral part, the second electrode is electrically connected through elements of the holder to the second external output of resonator.

EFFECT: improving spectral characteristics of piezo-device and decreasing long-term frequency instability.

3 dwg