Abstract
A solution is given for the problem of the excitation of Gulyaev-Bleustein shear surface acoustic waves by two ribbon electrodes of finite length on the surface of a semi-infinite crystal of hexagonal class 6mm. The electron charge distribution density functions are determined on the electrodes as are also the shear surface-wave characteristics. The formulation of the selfconsistent problem of the excitation of surface waves in a piezoelectric medium by a system of metal electrodes is elucidated in general form in /1/, and the method of solving it is based on using Green's matrix for the linear charge on the piezoelectric surface. By using Green's matrix, Fredholm singular integral equations of the first kind were obtained in /2, 3/ for the unknown electric-charge distribution density functions on the electrodes. The integral Eqs./2, 3/ allow of an analytic solution when investigating the excitation of shear waves in a hexagonal crystal by a system of narrow electrodes.
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