SMALL-SIZED HIGH FREQUENCY VIBRATOR

摘要

PROBLEM TO BE SOLVED: To provide a small-sized high frequency vibrator whereby stable desired principal vibration without production of spurious radiation is produced by the vibrator that makes AT-cut fundamental wave thickness share vibration with a frequency of 100 MHz or over and is integrally formed with a vibration section of a crystal raw thin plate and a reinforcement section made of a crystal raw thick plate surrounding the surrounding part of the vibration section. SOLUTION: An energy confinement coefficient of the vibrator is selected to be 3.5 or over and a length of a vibration plane is selected to be a multiple of 1.4 to 2.0 with respect to a length of an electrode plane to attain the purpose above in the vibrator that makes the AT-cut fundamental wave thickness share vibration with a frequency of 100 MHz or over and is integrally formed with the vibration section of the crystal raw thin plate and the reinforcement section made of the crystal raw thick plate surrounding the surrounding part of the vibration section. COPYRIGHT: (C)2004,JPO