Resonant Mode Characteristics of a Magnetostatic Resonator in Yttrium Iron Garnet (YIG) Films.
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- Yan Hua
- School of Engineering, Yamaguchi University, Tokiwadai 2557, Ube, Yamaguchi 755, Japan
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- Awai Ikuo
- School of Engineering, Yamaguchi University, Tokiwadai 2557, Ube, Yamaguchi 755, Japan
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- Yamagata Junji
- School of Engineering, Yamaguchi University, Tokiwadai 2557, Ube, Yamaguchi 755, Japan
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- Wang Qi
- School of Engineering, Yamaguchi University, Tokiwadai 2557, Ube, Yamaguchi 755, Japan
書誌事項
- タイトル別名
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- Resonant Mode Characteristics of a Magn
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抄録
In this paper, the performance of a magnetostatic surface wave straight edge resonator (MSSW-SER) is extensively studied, including the mode field distribution, the unloaded quality factor of the fundamental mode and coupling to the external circuit. Measurement of the magnetic field distribution on a MSSW-SER is found to be useful for identifying the mode number. The unloaded Q-value of the fundamental mode, which includes magnetic loss and conductor loss, and also the external Q are measured to give design data for tunable band-pass filters. Moreover, an equivalent circuit is set up to analyze the external Q, and verified by experiment. Under higher power excitation, a novel performance of the MSSW-SER is found in YIG films, that is, the resonant frequency shifts to the lower side and the unloaded quality factor tends to decrease. These phenomena caused by the nonlinear effect of a MSSW-SER are analyzed by means of the nonlinear MSSW dispersion relation. The above methods can be easily extended to study two other modes, magnetostatic forward volume wave (MSFVW) and magnetostatic backward volume wave (MSBVW) resonators.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 36 (2), 692-697, 1997
The Japan Society of Applied Physics
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詳細情報 詳細情報について
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- CRID
- 1390001206249207168
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- NII論文ID
- 210000041999
- 110003905644
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- NII書誌ID
- AA10457675
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- ISSN
- 13474065
- 00214922
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- NDL書誌ID
- 4176223
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可