The frequency dependence of dielectric constant ~ (f 1 x 10~? x 106 LIz)and dielectric loss tan5 (f = lxi 02 ?1 x 1 O5Hz) follow a power law respectively and all show decreasing trends as frequency raised.

• 薄膜的介电频率关系（f=1×10~3-1×10~6Hz）和损耗频率关系（f=1×10~2-1×10~5Hz）均服从指数规律，随频率的增大而减小；