Patent ID: 8907543
Filing Date: 2014-12-09
Classification: H03H

Abstract:
1. A surface acoustic wave component comprising: a piezoelectric crystal substrate; and at least two interdigital transducers having natural unidirectionality disposed on the piezoelectric crystal substrate, said transducers forming a transducer pair consisting of a transmission transducer and a reception transducer; wherein said transducers have an interdigital electrode structure having prongs and bus bars and have opposite forward directions, with at least two of the prongs forming a transducer cell that has at least one excitation center for exciting an electrical potential wave and at least one reflection center for reflection of electrical potential waves, wherein each of the transducer cells consist of two prongs having the same width, wherein a distance between centers of the two prongs is equal to half a length of a transducer period, and wherein electrode structures of the two transducers consist of the same material, but have different layer thicknesses from each other and wherein the piezoelectric crystal substrate is a Y cut of LiNbO