QUARTZ-CRYSTAL RESONATOR Russian patent published in 1997 - IPC

FIELD: radio electronics. SUBSTANCE: resonator crystal member is lens-shaped plate. Exciting electrodes are separated in center of crystal member by linear gap thereby affording excitation of parallel electric field. Amplitude of oscillations in such crystal member, as it is withdrawn from center to small axis of ellipse, which is, essentially, line of equal amplitudes, reduces 1.5 times faster than in perpendicular direction. That is why, size of crystal member in direction of small axis of ellipse may be reduced without increasing dynamic resistance. EFFECT: improved design. 2 dwg