Microwave Absorbers Prepared with Alnico Magnets

• 발행기관: 한국항해항만학회
• 저자명: Jae-Man Song Dong-Il Kim Seung-Jae Shin Sang-Hyun Moon Jung-Hyun Choi Jae-Hyun Jeung
• 간행물 정보: 『한국항해항만학회지』제29권 제2호, 147~150쪽, 전체 4쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 2005.03.31

영문 초록

We suggest a cast Alnico magnet as a new microwave absorber. The proposed Alnico microwave absorber shows advanced microwave absorption properties of 24 ㏈ at 13.3 ㎓ for the thicknesses of 1 ㎜. We also investigated the effects of the carbon, which effects strongly to microwave absorption in Alnico magnet microwave absorbers. Central frequency shifts toward lower frequency with increasing Alnico content which is related to the frequency to show tanδ＞1. Also, we investigated the sample thickness dependence on the microwave absorption properties.

목차

Abstract

1. Introduction

2. Sample Preparation and Measurements

3. Results and Discussion

4. Conclusions

Acknowledgements

References

키워드

Microwave absorber Recycled Alnico magnet Carbon content Alnico content Sample thickness ㎓ range Soft ferrite Hard ferrite