1. Quasi-Lamé-Mode Quartz-Crystal Resonators
- Author
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Yasutaka Shimizu, Yasutaka Shimizu, Masao Murota, Masao Murota, Hirofumi Kawashima, Hirofumi Kawashima, Yukio Yokoyama, Yukio Yokoyama, and Tadayoshi Kubota, Tadayoshi Kubota
- Abstract
In this paper, quasi-Lamé-mode quartz-crystal resonators formed by etching processes are examined theoretically and experimentally. First, the frequency equation for a Y-plate quartz-crystal resonator is derived by the energy method. Then, the relationship between the cut angles ?yand ?yto vibrate the quasi-Lamé mode is investigated. There are many combinations of ?yand ?yfor which the first-order temperature coefficient ? becomes zero. Finally, it is theoretically and experimentally demonstrated that the temperature characteristics of a Y-plate quasi-Lamé-mode quartz-crystal resonator is superior to that of a pure-Lamé-mode resonator.
- Published
- 2000
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