双磁性层结构中静磁后向体波的传播特性  

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

作　　者：张文康[1] 刘公强[1] 陈永康[2] 

机构地区：[1]上海交通大学物理系 [2]上海电视大学南汇分校,上海200233

出　　处：《上海交通大学学报》2004年第11期1861-1864,共4页Journal of Shanghai Jiaotong University

摘　　要：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.A theoretical investigation of the propagation characteristics of magneto-static backward volume wave in a double-layered magnetic film structure is presented. 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 thickness 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.

关 键 词：静磁后向体波 双磁性层 色散 传播损耗 

分 类 号：TN015[电子电信—物理电子学]