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Journal of the Korean Ceramic Society 1993;30(10): 823. |
2종의 Ferrite가 혼합된 복합 Ferrite 전파흡수체의 정합주파수 제어 |
권형주, 신재영, 오재희 |
인하대학교 무기재료공학과 |
Control of Matching Frequency of Ferrite Composite Microwave Absorber Consisted of Two Kinds of Ferrites |
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ABSTRACT |
The performance of ferrite composite microwave absorber has been evaluated as the matching frequency, the matching thickness and the band width. Especially, matching frequency is very important in application of microwave absorber because it determines operating frequency range. In this study, the ferrite composite microwave absorbers consisted Ni-Zn ferrite and Zn2Y ferroxplana were prepared in order to control matching frequency. Then, the variation of the material constants and microwave absorbing characteristics were investigated with various ferrite mixing ratio. The material constants of ferrite composite microwave absorber could be controlled by variation ferrite mixing ratio. Therefore, it was confirm that matching frequency of microwave absorber could be shifted by control of material constants. |
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