Wireless passive flexible surface acoustic wave icing sensor

The invention discloses a flexible surface acoustic wave icing sensor based on wireless and passive, and belongs to the technical field of icing sensors. The flexible piezoelectric base is deposited on the flexible substrate; the input interdigital electrode, the output interdigital electrode, the waveguide layer and the antenna are located on the flexible piezoelectric substrate; wherein the waveguide layer covers the input interdigital electrode and the output interdigital electrode, and the antenna is connected with the input interdigital electrode and the output interdigital electrode; the input interdigital electrode is used for converting an input excitation signal into a mechanical signal and enabling the flexible piezoelectric substrate to excite Rayleigh waves through vibration; the waveguide layer is made of PVDF materials and used for converting Rayleigh waves into love waves and conducting the love waves to the output interdigital electrode. And the output interdigital electrode is used for conver