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AssigneesAcoustical Technologies Singapore Pte. Ltd., Nanyang Technological University
InventorsChan Hin Kam, Yee Loy Lam, Yan Zhou, Shide Cheng, Woon Siong Gan
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A surface acoustic wave device that can operate in alternate-phase mode and single-phase mode, and thus generate surface acoustic waves at two different frequencies. The device is based on a piezoelectric film deposited on an elastic substrate, and includes an electrode layer patterned as two interdigital electrodes and electrical source (2). The device is operated in alternate-phase mode by connecting the two electrodes to different ends of an electrical source (22). The device is operated in single-phase mode by connecting the two electrodes to the same end of an electrical source.
A surface acoustic wave device, comprising:
A method of operating a surface acoustic wave device, the device comprising an electrode layer patterned as two electrodes with an interdigital arrangement, a piezoelectric layer and an elastic substrate layer, the method comprising:
Dependencies are inferred from the claim text.