As is known, the main function of waveguides is to channel a wave in a given direction, to concentrate its energy and to decrease the diffractive divergence and the losses caused by it. The Surface Acoustic Wave (SAW) waveguides are not an exception, their application allows us to use the areas of solid substrata more rationally when constructing filters and delay lines for large times. In the distant future, the SAW waveguides may be used as the base for constructing miniature acoustic analogues of well-known electromagnetic microwave devices, e.g., directional couplers, power dividers, circulators, etc. [10.1-3].
KeywordsRayleigh Wave Surface Acoustic Wave Symmetric Mode Flexural Wave Antisymmetric Mode
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