| 多晶YIG磁调滤波器研究 |
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| 引用本文： | 何成潘. 多晶YIG磁调滤波器研究[J]. 磁性材料及器件, 2010, 41(4): 42-44,57 |
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| 作者姓名： | 何成潘 |
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| 作者单位： | 西南应用磁学研究所,四川绵阳,621000 |
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| 摘 要： | 工作频率在6GHz以下、瞬时带宽大于200MHz的磁调滤波器,用传统的单晶YIG磁调滤波器是难以实现的。选择多晶YIG小球作为谐振子,用环耦合结构,借鉴单晶YIG磁调滤波器的设计理论和方法,设计制作了多晶YIG磁调滤波器。器件实测性能如下:在频率2～4GHz范围内,3dB带宽大于150MHz,损耗小于6dB,已达到实用化,表明了多晶YIG用于磁调滤波器的可行性。
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| 关 键 词： | 多晶YIG调谐滤波器 铁磁共振线宽 带宽 损耗 |
Research on Polycrystalline YIG-tuned Filters |
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| HE Cheng-pan. Research on Polycrystalline YIG-tuned Filters[J]. Journal of Magnetic Materials and Devices, 2010, 41(4): 42-44,57 |
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| Authors: | HE Cheng-pan |
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| Affiliation: | HE Cheng-pan Southwest Institute of Applied Magnetics,Mianyang 621000,China |
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| Abstract: | When the working frequency is lower than 6GHz,the instantaneous bandwidth of single crystal YIG tuned filters can hardly be larger than 200MHz.Choosing polycrystalline YIG spheres as harmonic oscillator,and using loop coupling structure,and referring to the theories and technologies of designing single crystal YIG-tuned filter,polycrystalline YIG-tuned filter was designed and fabricated.Practical properties of 3dB bandwidth of larger than 150MHz and loss of less than 6dB in frequency range of 2-4GHz were ob... |
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| Keywords: | polycrystalline YIG-tuned filters ferromagnetic resonance linewidth bandwidth loss |
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