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  • 學位論文

利用雜訊抑制材料抑制濾波器諧波的研究

Study of Noise Suppression Materials on the Harmonic Suppression of Filters

指導教授 : 陳立軒

摘要


本研究將磁性材料Fe3O4與導電材料Ag利用環氧樹脂混合,並且探討雜訊抑制特性,進而應用於濾波器諧波特性抑制之影響。濾波器是以半波長分支阻抗諧振器設計為架構,首先利用HFSS模擬軟體探討濾波器的特性,再比較實驗結果對於頻率響應及諧波抑制之影響。研究結果發現覆蓋雜訊抑制材料之濾波器,使中心頻率900MHz不受影響,而濾波器倍頻諧波能利用材料抑制特性,來達到諧波抑制效果。

並列摘要


This study investigates the effect of magnetic Fe3O4 and Ag conductive material mixing with ITK epoxy on the noise suppression of bandpass filters. The bandpass filters is based on half wavelength resonators . The simulator HFSS was employed to simulate the characteristics of filters and the simulated results were compared with experimental results . It is found that the center frequency of filters is not affected after the coating of noise suppression materials ; however , the harmonic of the filters is suppressed with the cated films.

參考文獻


[1]電磁干擾/相容(EMI/EMC)temiac.ee.ntu.edu.tw/files/archive/250_5d6458b8.pdf
[2] A. Fujiwara, M. Tada, T. Nakagawa, M. Abe, “Permeability and electric resistivity of spin-sprayed Zn ferrite films for high-frequency device applications”, Journal of Magnetism and Magnetic Materials 320, pp 67-69, 2008.
[3] 莊凱欽 “抑制高次諧波濾波器之研究” 逢甲大學通訊與IC產業研發碩士班碩士學位論文, 2007。
[4] Low-Pass Filter Design Example - University of San Diego www.sandiego.edu/~ekim/e194rfs01/lec18ek.pdf
[5]林文正 “抑制微帶線帶通濾波器混附波響應之研究” 義守大學電子工程研究所碩士論文, 2007。

被引用紀錄


丁冠仁(2015)。導電材料對高頻訊號抑制之研究〔碩士論文,義守大學〕。華藝線上圖書館。https://doi.org/10.6343/ISU.2015.00240

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