꼭지절단 원추형 페라이트 전파흡수체의 최적설게 및 제작에 관한 연구 = A Study on Design and Fabrication of Ferrite Wave Absorber in Top-Cut Corn Array Type

다국어 초록 (Multilingual Abstract)

The remarkable progress of electronics and radio communications technology has made our life abundant. On the other hand, the countermeasure of EMC becomes more important socially according to the increased use of electromagnetic waves. It had been required that the absorbing ability of an electromagnetic wave absorber is more than 20 dB, the bandwidth of which is require through 30 MHz to 1,000 MHz for satisfying the international standard about an anechoic chamber for EMI/EMS measurement. From November of 1998, however, the CISPR11 has accepted the extended frequency band from 30MHz to 18 GHz in the bandwidth of EMI measurement. In this paper, we propose the cutting corn-shaped type satisfying the above requirments and carried out broadband design using the equivalent material constants method. Moreover, we have fabricated it and compared its characteristics with simulated one.

목차 (Table of Contents)

• 1.서론
• 2.등가재료정수의 계산
• 2.1등가유전율
• 2.2등가 투자율
• 3.제안한 전파흡수체의 설계
• 4.최적 설계 및 제작
• 5.결론
• 참고문헌