双磁性层结构中静磁后向体波的传播特性

分析了两个磁性层和间隔层的厚度对静磁后向体波色散和传播损耗的影响．在双层结构中，具有较大厚度的磁性层对传播常数和衰减常数的影响较大，通过适当选择两个磁性层的厚度和间隔层厚度，色散和衰减常数能显著地降低，线性延迟或不变延迟的带宽能显著提高．在单磁性层结构中，静磁波传播是主要的限制带宽的机制，由于双层结构中静磁波的传播损耗可以显著降低，因此，静磁波的激发成为主要限制带宽的机制．

Magnetostatic Backward Volume Wave Propagation in Double-Layered Magnetic Film Structure

This paper presented a theoretical investigation of the propagation characteristics of magnetostatic backward volume wave in a double-layered magnetic film structure. The numerical results show that the magnetic layer with large thickness has significant effects on the propagation constant and attenuation constant. The dispersion and propagation loss can be reduced significantly by properly choosing the thicknesses of the two magnetic films and separation layer. In addition, the excitation of magnetostatic wave is the main bandwidth-limiting mechanism in a double-layered structure.