The dispersion properties of Love waves are utilized for the fabrication of sensor devices in the different material environments. This study involves the propagation of Love wave in a double-layered structure consisting of two finite layers of viscoelastic and piezoelectric material lying over the semi-infinite size-dependent micropolar substrate. The bottom substrate of the structure is modeled as, the material with microstructural properties. The real and damping dispersion relations are obtained analytically in closed form expression under both the cases of electrically open and short conditions. The coupling constant and characteristic length that describe the effect of the microstructure of the micropolar substrate, are studied graphically on Love wave propagation. The effects of piezoelectric layer are shown by considering two different materials of a piezoelectric layer, i.e., \(PZT-5H\) or \(BaTiO_3\), along with the internal friction and heterogeneity parameter associated with a viscoelastic layer. The numerical computation and the graphs are given for aluminium-epoxy (substrate), viscoelastic material and \(PZT-5H\) or \(BaTiO_3\) (piezoelectric layer). Some of the particular cases are derived from the study by using different relevant conditions.

Love波的色散特性用于在不同材料环境中制造传感器设备。这项研究涉及Love波在双层结构中的传播，该双层结构由两层有限的粘弹性和压电材料层组成，这些层位于半无限大小相关的微极性基板上。结构的底部基板被建模为具有微结构特性的材料。实际的和阻尼的色散关系在电断开和短路情况下均以闭合形式通过解析获得。用图形研究了描述微极性衬底微结构影响的耦合常数和特征长度对洛夫波的传播。\（PZT-5H \）或\（BaTiO_3 \）以及与粘弹性层关联的内部摩擦和非均质性参数。给出了铝-环氧树脂（基底），粘弹性材料和\（PZT-5H \）或\（BaTiO_3 \）（压电层）的数值计算和图表。一些特殊情况是通过使用不同的相关条件从研究中得出的。