| 双层YIG波导中静磁体波的传播特性 |
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| 引用本文： | 司新文,刘公强,孟凡英.双层YIG波导中静磁体波的传播特性[J].电子学报,2001,29(3):417-419. |
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| 作者姓名： | 司新文 刘公强 孟凡英 |
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| 作者单位： | 上海交通大学应用物理系,上海 200240 |
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| 基金项目： | 上海市科技发展基金!(No .98ZA1 4 0 0 3) |
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| 摘 要： | 本文研究了在倾斜静磁场作用下,双层YIG薄膜波导结构中静磁体波的传播特性,得到了其色散的特征方程,计算了磁场倾角从5°到20°范围内双层波导结构中静磁体波传播的色散关系和延迟特性.结果表明,斜向场情况下在双层YIG薄膜结构中传播的静磁体波适合应用于高频范围,并且通过调节磁场倾角可以获得比单层膜波导结构更好的延迟率可调范围.斜向场情况下采用双层YIG薄膜结构,对于改进静磁波器件和磁光波导器件的性能具有十分重要的意义.
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| 关 键 词： | 静磁波 色散关系 延迟特性 |
| 文章编号： | 0372-2112 (2001) 03-0417-03 |
| 收稿时间： | 2000-03-09 |
The Propagation Characteristics of MSFVWs in a Double-layered YIG Waveguide |
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| SI Xin-wen,LIU Gong-Qiang,MENG Fan-ying.The Propagation Characteristics of MSFVWs in a Double-layered YIG Waveguide[J].Acta Electronica Sinica,2001,29(3):417-419. |
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| Authors: | SI Xin-wen LIU Gong-Qiang MENG Fan-ying |
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| Affiliation: | Department of Applied Physics,Shanghai Jiao Tong University,Shanghai 200240,China |
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| Abstract: | The propagation characteristics of magnetostatic forward volume waves (MSFVWs) for a double-layered YIG waveguide structure under inclined magnetic field are theoretically studied and the secular equation is obtained.In addition,the dispersion relation and delay characteristics of the coupled mode in two different YIG films are studied by numerical analogue in the range of inclination angle from 5° to 20°.The results indicate that the MSFVWs propagating in double-layer YIG structure are appropriate for high frequency range under inclined field,and they have an optimum regulating range of delay rate superior to single film by adjusting the inclination angle of magnetic field.Apparently,the performance of the double-layered waveguide under inclined field has important significance to the application of magnetostatic waves and magneto-optic waveguide devices in the future. |
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| Keywords: | magnetostatic wave dispersion relation delay characteristic |
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