Surface acoustic wave device with transverse clutter suppression function

• Main Authors: ZHAN XUEKUI, PAN HONGZHI, MA JINYI, TAN FAZENG, DU XUESONG, HE YI, LENG JUNLIN, DONG JIAHE, CHEN ZHENGLIN, XIAO QIANG
• Format: Patent
• Language: Chinese; English
• Published: 18.07.2023
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS

The invention discloses a surface acoustic wave device with a transverse clutter suppression function, which comprises a busbar and a finger strip assembly, and further comprises a suspension block assembly, the finger strip assembly comprises a plurality of finger strips which are uniformly arranged along the axial direction, the suspension block assembly comprises a plurality of suspension block components, the suspension block components are in one-to-one correspondence with the finger strips, and the suspension block components are in one-to-one correspondence with the finger strips. The suspension block parts are located between the corresponding finger strips and the corresponding busbars, and gaps are formed between the suspension block parts and the corresponding finger strips and between the suspension block parts and the corresponding busbars. According to the scheme, the scattering of the surface acoustic waves in the aperture direction is reduced by constraining the energy of the surface acoustic