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Journal of Navigation and Port Research 2004;28(6):503-507.
Published online August 31, 2004.
㎓ 대역용 복합형 Sr 페라이트 전파 흡수체의 개발
김동일, 문상현, 신승재, 송재만, 김기만
Development of Composite Sr Ferrite EM Wave Absorbers for ㎓ Frequency
Dong Il Kim, Sang Hyun Moon, Sung Jae Shin, Jae Man Song, Ki Man Kim
Abstract
We prepared EM wave absorbers by using recycled Sr ferrite for ㎓ frequency, and investigated the effects of carbon additions and preparation temperatures on their EM wave absorption properties. A Sr ferrite EM wave absorber with the ratio of Sr ferrite : silicon rubber : carbon ＝ 80 : 13.6 : 6.4 wt％ prepared at 70℃ showed -24 ㏈ at 9.4 ㎓ and -23 ㏈ at 5.5 ㎓ for 2 ㎜ and 3 ㎜ thickness, respectively.
Key Words: 스토론튬(Sr) 페라이트; Sr ferrite;EM wave absorber;Carbon;Preparation temperature;Recycled ferrite
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