Rayleigh wave filter based on mirror symmetry structure

The invention provides a Rayleigh wave filter based on a mirror symmetry structure, which belongs to the technical field of filters and comprises a flat plate device A and a flat plate device B, the upper boundary and the lower boundary of the flat plate device A are arranged in an anti-symmetric periodic rectangular ripple manner, and the flat plate device B is obtained by performing 180-degree mirror mapping on the flat plate device A by taking a y axis as a central axis. And a rectangular flat plate device C; the flat plate device A structure and the flat plate device B structure are arranged in a mirror symmetry mode, and the periodic number of the flat plate device A and the flat plate device B can be adjusted according to the filtering effect. The Rayleigh wave filter based on the mirror symmetry structure is simple in structure, low in cost and easy to implement; and the filtering performance is good, the stability is high, and the sustainable effect is achieved. 本发明提供一种基于镜像对称结构的瑞利波滤波器，其属于滤波器技术领域，其包括平板