Posz Law Group, PLC
Surface acoustic wave element, method of producing the same, and method of changing resonation frequency of the same
A surface acoustic wave element includes a piezoelectric member, a comb-teeth electrode, and a reflector. The comb-teeth electrode is arranged on the piezoelectric member. The reflector is arranged on the piezoelectric member. The reflector reflects a surface acoustic wave transmitted from the comb-teeth electrode. The reflector has a plurality of areas, and each of the areas has a frequency to make a reflection efficiency the largest. At least two of the frequencies of the areas are made different from each other.
DENSO CORPORATION
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Kazuhiko Shingo Kazuki
Kano Jinno Arakawa